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Inlet Manifold

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AMS9050094
Product Information
Product Information

The Adapt Motorsport 996 GT3 intake manifold adapter kit connects a GT3 manifold to compatible air-cooled Porsche 964 and 993 engines. Its compact, CNC-machined aluminium adapters are tapered to match the selected cylinder-head port with the manifold’s 49mm bore and comes with fuel rails.

Fits:

  • Porsche 964 (911) 1989–1994
  • Porsche 964 (911) C2 1989–93
  • Porsche 964 (911) C4 1989–93
  • Porsche 993 (911) 1994–1998
  • Porsche 993 (911) C2 1994–97
  • Porsche 993 (911) C4 1994–97
  • Porsche 993 (911) C2S 1994–97
  • Porsche 993 (911) C4S 1994–97


What This Product Does

The kit provides the physical transition required to install 996 GT3 intake manifolds on compatible three-bolt air-cooled cylinder heads. Its short design limits the total height of the intake assembly, helping to reduce potential interference around the idle-air control components, intake boot and engine-bay insulation.

The injector is positioned over the original relief in the intake port. The adapters also provide mounting provisions for Adapt Motorsport fuel rails when the appropriate fuel-rail configuration is selected.


Functions

  • Connects a 996 GT3 intake manifold to compatible Porsche 964 and 993 cylinder heads
  • Transitions the selected intake-port diameter to the manifold’s 49mm bore
  • Maintains a compact intake-system height
  • Positions the injector above the original intake-port relief
  • Supports Bosch fuel injectors with 14mm O-ring fittings
  • Provides mounting points for compatible Adapt Motorsport fuel rails


Technical Details

  • Precision CNC-machined from high-grade aluminium
  • Black anodised finish
  • Standard adapter height: 78mm
  • Tall adapter height: 113mm, adding 35mm of runner length
  • 42mm adapters are specified for standard 964 ports measuring approximately 41.5mm
  • 44mm adapters are specified for standard 993 ports measuring approximately 43.5mm;


Injector Compatibility

The supplied fuel-rail spacer posts accommodate long-body Bosch EV1, EV6 and EV14 injectors. Markings on the posts allow them to be shortened for compatible medium- or short-length injectors. All injectors must use 14mm O-ring fittings.


Kit Contents

  • Six CNC-machined aluminium intake adapters
  • Four fuel-rail spacer posts
  • Four bolts for standard full-length Bosch injectors
  • Fuel rails and fittings when a fuel-rail kit configuration is selected


GT3 intake manifolds, rubber joiners, fuel injectors and hose clamps are not included. An advanced single fuel-rail option with an integrated pressure regulator and damper is available only with compatible adapter and fuel-rail kit configurations.


Power-Steering Compatibility

Versions identified as “No PS” are intended for installations without a hydraulic power-steering pump, including suitable G-model conversions or vehicles using electric power steering. No PS adapters will not fit a Porsche 964 or 993 while its hydraulic power-steering pump remains installed.

Why Correct Selection Matters

The adapter diameter should correspond with the measured cylinder-head port. Correct selection provides the intended transition into the head, while the appropriate height, injector arrangement and power-steering clearance allow the converted intake assembly to be installed as designed.


FAQs

  • Which size is used with a standard 964 port? The manufacturer specifies the 42mm adapter for a standard 41.5mm 964 intake port.
  • Which size is used with a standard 993 port? The 44mm adapter is specified for the standard 43.5mm 993 intake port.
  • When should the 46mm option be considered? It is offered for applicable RS or non-standard enlarged ports. Measure the cylinder-head ports before selection.
  • Can different injector lengths be installed? Yes. The marked posts may be shortened for compatible long, medium or short Bosch injectors.
  • Are the GT3 manifolds included? No. Manifolds, rubber joiners, injectors and hose clamps must be obtained separately.


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

AMS9050094
96411071101
99311071250

The product you are viewing cross references to these numbers
AMS905009
Product Information
Product Information

This Adapt Motorsport kit adapts a 996 GT3 intake manifold to Porsche 964 and 993 engines with three-bolt cylinder heads. Its short, CNC-machined aluminium adapters preserve a compact intake height while supporting compatible fuel-rail and injector configurations.

Fits

  • Porsche 964 (911) 1989–1994
  • Porsche 964 (911) C2 1989–93
  • Porsche 964 (911) C4 1989–93
  • Porsche 993 (911) 1994–1998
  • Porsche 993 (911) C2 1994–97
  • Porsche 993 (911) C4 1994–97
  • Porsche 993 (911) C2S 1994–97
  • Porsche 993 (911) C4S 1994–97

What This Product Does

The adapters provide the interface required to install 996 GT3 intake manifolds on compatible air-cooled 3.6ltr engines. Their tapered internal form matches the selected cylinder-head port to the manifold's 49mm bore, while the compact design helps reduce interference around the idle-air control system, intake boot and engine-bay insulation.


Functions

  • Connects 996 GT3 intake manifolds to three-bolt air-cooled cylinder heads
  • Transitions the selected intake-port diameter to the manifold's 49mm bore
  • Maintains a compact overall intake-system height
  • Supports Adapt Motorsport fuel-rail installations
  • Positions the injector above the original intake-port relief
  • Accommodates long, medium and short Bosch injector formats


Technical Details

  • Precision CNC-machined from high-grade aluminium with a black anodised finish
  • Standard adapter height: 78mm
  • Tall adapter option: 113mm, providing an additional 35mm of runner length
  • 42mm adapters suit standard 964 ports, which measure approximately 41.5mm
  • 44mm adapters suit standard 993 ports, which measure approximately 43.5mm; 46mm options suit applicable non-standard or RS ports
  • Compatible with Bosch EV1, EV6 and EV14 fuel injectors using 14mm O-ring fittings


Kit Contents

  • Six CNC-machined aluminium intake adapters
  • Four fuel-rail spacer posts
  • Four bolts for standard full-length Bosch injectors


The spacer posts are marked so they can be shortened for medium- or short-length injectors. Intake manifolds, rubber joiners, injectors and hose clamps are not included. Fuel-rail-equipped configurations and an advanced single fuel rail with an integrated pressure regulator and damper are optional versions of the kit.


Why Replacement Matters

Correct adapter dimensions are essential when combining the later GT3 manifold with air-cooled three-bolt cylinder heads. Matching the port size maintains a suitable transition into the cylinder head, while the specified adapter height and injector position help the converted intake assembly fit and operate as intended. 


FAQs

  • Which size suits a standard Porsche 964?
    Select the 42mm adapter for a standard 41.5mm 964 intake port.
  • Which size suits a standard Porsche 993?
    Select the 44mm adapter for a standard 43.5mm 993 intake port.
  • When is the 46mm version appropriate?
    It is intended for applicable RS engines or cylinder heads with non-standard enlarged ports. Confirm the measured port diameter first.
  • Can different injector lengths be used?
    Yes. The marked spacer posts can be shortened to suit long, medium or short Bosch injectors with 14mm O-ring fittings.
  • What is the difference between the standard and tall adapters?
    The standard version is 78mm high. The tall version measures 113mm, adding 35mm to the intake runner length.
  • Are the No PS versions suitable for a standard 964 or 993?
    No. They are for installations without a hydraulic power-steering pump, such as some G Model conversions or vehicles using electric power steering.


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

AMS905009
96411071101
99311071250

The product you are viewing cross references to these numbers
96411071101
Product Information
Product Information
Air intake manifold 964/993 to GT3, billet aluminium - Set of 6
Comes complete with thermal insulating manifold gaskets




Fits:
Porsche 964 - 1989 to 1993
Porsche 993 - 1994 to 1998

Tailored for GT3 Type Intakes:
Specially designed to fit GT3  intake manifolds (with built-in offsets) perfectly accommodating the narrower 964/993 engines.

Product Overview:
Crafted from top-quality aircraft aluminum, our Porsche 964/993 to GT3 Billet Intake Runners offer optimal performance. 
Available in head diameters of 41.5mm, 42.5mm, 44mm or 45.8mm with standard injector sizes. 

Versatile Compatibility and Configurations:
Compatible with standard rails or engineered for use with the IslandWorks/Nuke system, featuring a direct mount fuel regulator. 

Superior Craftsmanship and Finish:
Each runner boasts a natural machined finish and includes a base gasket insulator, ensuring optimal performance.

Important Note:
To ensure effective heat insulation, this product requires a flat cylinder head seal, offering better performance compared to the usual seal type.
Supplied with reinforced high thermal plastic gaskets for thermal insulation



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96411071101
96411071101
99311071250

The product you are viewing cross references to these numbers
99311071250
Product Information
Product Information
Air intake manifold billet aluminium - Set of 6
Comes complete with manifold gaskets




Fits:
Porsche 964 - 1989 to 1993
Porsche 993 - 1994 to 1998

For use with the standard 964/993 inlet manifolds and 3 bolt manifolds

Product Details:
Replace your aging plastic intake runners on the Porsche 964/993 with meticulously 3D milled billet versions in aircraft aluminum, offering durability and aesthetic enhancement.

Enhanced Specifications:
Available in head diameters of 41.5mm or 42.5mm, paired with standard injector sizes. 

Flexible Compatibility and Configurations:
Compatible with standard rails 

Important Note:
To ensure effective heat insulation, this product requires a flat cylinder head seal, offering better performance compared to the usual seal type.
Supplied with reinforced high thermal plastic gaskets for thermal insulation

Craftsmanship and Finish:
Featuring a natural machined finish, these runners are equipped with a base gasket insulator for 



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99311071250
96411071101
99311071250

The product you are viewing cross references to these numbers
Special Order item
99311054608
Product Information
Product Information
Air intake manifold support.



Fits:
Porsche 993 C2 / C4 3.6L 1995
Porsche 993 Turbo 3.6L 1995-98
Porsche 993 Carrera RS 3.75L 1995-96

Click 'zoom in' for large parts diagram.
Diagram ref no 18.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99311054608
99311054608

The product you are viewing cross references to these numbers
KCP-0079
Product Information
Product Information
Upgrade your Porsche 964 / 993 with high-performance KCPerformance Intake Kit. Increase power by 30-50 hp with precision-engineered billet aluminum components, optimizing airflow and efficiency for a thrilling driving experience.

Porsche 964/993 Intake Kit: Maximize Performance
Push the boundaries of engine performance and experience the power of true technological innovation with Porsche 964/993 Intake Kit. Developed with passion and precision, this kit is designed for those who demand nothing less than ultimate performance from their vehicle. Whether you're after rapid acceleration, sharp throttle response, or a boost in power, this intake kit is the key to unlocking your Porsche's full potential.

The intake system upgrade for the Porsche 964-993 significantly enhances airflow and efficiency, delivering a power gain of approximately 30-50 hp. This increase results in improved performance, a more responsive engine, and better fuel economy, leading to greater driving pleasure.

At KCPerformance, we've chosen billet aluminum over plastic or carbon-reinforced 3D printed materials for our Porsche intake manifold system. This decision is rooted in the proven reliability and durability of billet aluminum, which can withstand the high-heat environment of air-cooled engines. It ensures robust performance, long-lasting dependability, and reliability, even under extreme conditions.

What's included in Porsche 964/993 Intake Kit:
• 82mm Throttle Body: Maximizes airflow for optimal performance.
• Billet Lightweight Throttle Body Adapter Housing: Integrated with an IAT/MAP sensor combination and vacuum connections for seamless functionality.
• Billet Lightweight Resonance Valve: OEM Porsche vacuum connection ensures reliable performance.
• 6 Modern Upgrade Injectors: Provide optimal fuel injection for maximum efficiency and performance.
• Lightweight Aluminum Intake Runners: Precision-machined billet aluminum ensures unobstructed airflow and boosts performance.
• Thermal PTFE Inlet/Intake Gasket: Effectively shields against heat soak, improving durability and performance.
• High-Quality Fuel Rail: Two billet fuel rails with stainless steel brackets and injector locking plates ensure secure fitment and optimal fuel delivery.
• DMR Fuel Pressure Regulator: Mounts directly to the fuel rail, allowing full control over fuel supply and performance.
• Original Porsche Intake Rubbers & Hose Clamps: 6 original intake rubbers and 12 hose clamps ensure secure installation.
• Complete Fuel Lines: Ensures a reliable and efficient fuel supply.

Precision and Innovation in Every Detail
Porsche 964/993 intake kit is engineered with precision, CNC-machined, and anodized in gunmetal gray. After thorough flow testing and detailed engineering, this kit delivers a sharp throttle response and an immediate air injection when you hit the gas pedal. Expect a power gain of 30-50 hp, elevating your Porsche's performance to new heights and ensuring a liberated power source that complements larger engine displacements.

Your Path to Engine Perfection
Achieve engine perfection with our Porsche 964/993 Intake Kit. Fine-tune your setup on a dyno to unlock its full potential and enjoy unparalleled power, speed, and driving excitement. This is your gateway to extraordinary performance and superior driving experience.

Maximize Every Ride
Seize the opportunity now to take your Porsche to the next level. Maximize every ride and dominate the road with Porsche 964/993 Intake Kit. 



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

KCP-0079
96411002300
96411062702
96411062703
96411062600
96411062802
96411062803
99311062704
99311062750

The product you are viewing cross references to these numbers
99311062704
Product Information
Product Information
Drive by wire throttle body intake system - Carbon Fibre. 
Throttle body diameter - 82mm



Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

  • 6 precision-engineered runners crafted from anodized structural aluminum
  • 2 anodized fuel rails, also made from structural aluminum for durability and performance
  • Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
  • Intake T-tube in glass-reinforced thermoplastic, compatible with a 82mm DBW throttle body
  • Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
  • 6 high-temperature silicone couplers for the manifold-to-runner connections
  • 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
  • TMAP sensor for accurate air intake measurements
  • Vacuum reservoir for optimized engine performance
  • All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

  • 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
  • Direct mount of fuel rail to the runner for perfect injector press fit.
  • CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
  • Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
  • Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
  • All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
  • Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99311062704
96411002300
96411062702
96411062703
96411062600
96411062802
96411062803
99311062704
99311062750

The product you are viewing cross references to these numbers
99611061870
Product Information
Product Information
Drive by wire throttle body intake system - Glass Reinforced Thermoplastic. 
Throttle body diameter - 82mm



Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

  • 6 precision-engineered runners crafted from anodized structural aluminum
  • 2 anodized fuel rails, also made from structural aluminum for durability and performance
  • Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
  • Intake T-tube in glass-reinforced thermoplastic, compatible with a 82mm DBW throttle body
  • Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
  • 6 high-temperature silicone couplers for the manifold-to-runner connections
  • 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
  • TMAP sensor for accurate air intake measurements
  • Vacuum reservoir for optimized engine performance
  • All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

  • 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
  • Direct mount of fuel rail to the runner for perfect injector press fit.
  • CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
  • Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
  • Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
  • All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
  • Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99611061870
96411002300
96411062702
96411062703
96411062600
96411062802
96411062803
99311062704
99311062750

The product you are viewing cross references to these numbers
99311062704
Product Information
Product Information
Drive by wire throttle body intake system - Carbon Fibre. 
Throttle body diameter - 92mm 



Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

  • 6 precision-engineered runners crafted from anodized structural aluminum
  • 2 anodized fuel rails, also made from structural aluminum for durability and performance
  • Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
  • Intake T-tube in glass-reinforced thermoplastic, compatible with a 92mm DBW throttle body
  • Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
  • 6 high-temperature silicone couplers for the manifold-to-runner connections
  • 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
  • TMAP sensor for accurate air intake measurements
  • Vacuum reservoir for optimized engine performance
  • All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

  • 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
  • Direct mount of fuel rail to the runner for perfect injector press fit.
  • CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
  • Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
  • Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
  • All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
  • Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99311062704
96411002300
96411062702
96411062703
96411062600
96411062802
96411062803
99311062704
99311062750

The product you are viewing cross references to these numbers
99611061870
Product Information
Product Information
Drive by wire throttle body intake system - Glass Reinforced Thermoplastic. 
Throttle body diameter - 92mm



Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

  • 6 precision-engineered runners crafted from anodized structural aluminum
  • 2 anodized fuel rails, also made from structural aluminum for durability and performance
  • Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
  • Intake T-tube in glass-reinforced thermoplastic, compatible with a 92mm DBW throttle body
  • Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
  • 6 high-temperature silicone couplers for the manifold-to-runner connections
  • 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
  • TMAP sensor for accurate air intake measurements
  • Vacuum reservoir for optimized engine performance
  • All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

  • 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
  • Direct mount of fuel rail to the runner for perfect injector press fit.
  • CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
  • Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
  • Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
  • All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
  • Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99611061870
96411002300
96411062702
96411062703
96411062600
96411062802
96411062803
99311062704
99311062750

The product you are viewing cross references to these numbers
93011003404
Product Information
Product Information
Drive by wire inlet conversion kit for turbo retrofit with inlet manifold runners. 
Convert to Drive by Wire when retro fitting a turbocharger or supercharger


Fits:
Porsche 911 - 1974 - 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

911 used 2-Bolt type
964/993 uses 3-Bolt type


Please Note: 
The aluminium or plastic intake plenum (inlet manifold) is not included in the kit

Product Overview:

Inject power and precision into your vintage aircooled engine, now also for turbo or supercharged cars.

To be used when converting a G-Model 911 or a 964/993 engine to a turbocharged/supercharged engine with a 964 induction based Drive by Wire set-up

Conversion kit to a Porsche 964 based intake system to become a DBW (Drive by wire) intake based 74mm original Bosch throttle body (Sometimes referred to as 76mm) specifically executed all in CNC milled billet aluminum.

This is sold either with the intention to convert a Porsche 964/993 engine or to adapt and convert a 964 intake onto a G-model car when turbocharging.

Kit includes:

  • Throttle body runner for 74mm throttle body in aluminum 
  • Vacuum port on throttle body runner
  • Original Bosch electronic throttle body
  • Original Bosch MAP-T-sensor
  • Connecting pipe out of aluminum replacing the resonance tube

Intake runners for the Porsche 911 G-model (2-bolt) or 964/993 (3-bolt) engine are made out of billet aluminium, 3D milled in a 5-axis machine. The port diameter indicated in the options is the diameter of the port in the cylinder head. 

The following parts are to be reused from your original 964 intake:
Rubber boots and clamps
The plenums (inlet manifolds)

Please Note:
Aluminium or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011003404
93011003404

The product you are viewing cross references to these numbers
96411012800/1
Product Information
Product Information
Drive by wire inlet conversion kit to GT3 manifolds
Convert the 964/993 induction to 996 GT3 Drive by Wire set-up


Fits:
Porsche 964 - 1989 to 1993
Porsche 993 - 1994 to 1998

Product Overview:

Inlet conversion kit consists of the throttle body runner and the resonance tube. This is what you need to convert a Porsche 996 GT3 MK1 or MK2 plenum to fit on a Porsche 964 engine. This kit is solid and made from a modified PA12 material making the original Porsche parts feel old and flimsy in comparison. 

Components Include: 

  • Throttle body runner made out of a modified PA12 material and an industrial 3d moulding process
  • Seal and original Porsche 997 GT3 Bosch 82mm electronic throttle body
  • Vacuum tube with original resonance flap internals. Note the internals come from refurbished original 996 parts.
  • Vacuum solenoid and reservoir with mounts as per images
  • Rubber boots and clamps
  • Vacuum connections, check valve and extra hose
  • Original Bosch MAP-T-sensor for 1 bar



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96411012800
96411090100
96411090130
99611061996

The product you are viewing cross references to these numbers
96411090100
Product Information
Product Information
Drive by wire inlet conversion kit
Convert the 964/993 induction to Drive by Wire set-up


Fits:
Porsche 964 - 1989 to 1993
Porsche 993 - 1994 to 1998

Product Overview:
Transform your Porsche 964's performance with this sleek and high-tech intake kit designed for Porsche 964/993. This innovation marks a transition from the typical accelerator cable-based throttle to an electronic "drive by wire" throttle body. This advanced change streamlines the intake system by eliminating unnecessary components, resulting in a cleaner engine bay appearance. 

This modification offers a more drivable setup for highly tuned engines while incorporating the precision of a drive by wire (DBW) throttle.

This enhanced drivability is a key feature for a tuned aircooled engine and allows for smooth idle control with a cold as well as a hot engine. It simply makes the engine feel more modern as compared to the old ITB (individual throttle bodies) setups lacking in mid range torque and difficulties with the idle control.

Precision-Engineered Components:

  • 82mm Throttle Body with Reinforced Industrial PA12 Manifold
  • CNC-Milled Intake Manifold Stacks Crafted from Billet Aluminium
  • Included Rubber Boots and Clamps for Easy Installation
  • Islandworks Resonance Tube with Valve and Solenoid, Manufactured from the Same PA12 Material
  • Integrated Manifold Pressure and Temperature Sensors
  • Essential Vacuum Lines for Optimal Performance

Kit Includes
Complete intake with all the parts seen in the image manufactured from modified PA12 using an industrial process. This intake plenum has been optimized to fit on a Porsche 964 or Porsche 993 and includes all vacuum ports for both brake vacuum and to maneuver the resonance flap.

The following parts will be reused from the 964 intake:

  • Rubber boots and clamps
  • Vacuum reservoir
  • The aluminum or plastic plenums
  • Resonance flap
  • Actuator and shaft

Note: the aluminum or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96411090100
96411090100
96411090130
99611061996

The product you are viewing cross references to these numbers
AMS905013
Product Information
Product Information

Adapt Motorsport GT3 manifold electronic throttle conversion kit for naturally aspirated classic Porsche 911 applications 964 and 993 engines. It combines a Bosch 82mm drive-by-wire throttle body with AMS fuel-rail, resonance-flap and vacuum-control hardware. 

Fits:

  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93
  • Porsche 993 (911) C2 1994-97
  • Porsche 993 (911) C4 1994-97
  • Porsche 993 (911) RS 1994-97
  • Porsche 993 (911) C2S 1994-97
  • Porsche 993 (911) C4S 1994-97

What This Product Does

The conversion is based around large-volume Porsche 996 GT3 intake manifolds and introduces electronic throttle control to compatible air-cooled 911 engine builds. Specially designed adapters accommodate the shorter cylinder spacing of the air-cooled engine, while the integrated resonance-flap and vacuum-control components support a complete intake installation.

Functions

  • Controls engine airflow through a Bosch 82mm electronic throttle body
  • Adapts 996 GT3-style intake hardware to compatible air-cooled Porsche engines
  • Provides fuel-rail mounting for short, medium or long EV14-style injectors
  • Operates the resonance flap using the supplied vacuum components
  • Provides connections for brake-booster vacuum, idle-air bypass and other vacuum requirements
  • Accommodates a Bosch temperature and manifold-pressure sensor


Technical Details

  • GT3 intake manifold port diameter: 49mm; the manufacturer compares this with 43mm for a standard 964 manifold 
  • Three-bolt adapters are offered with 42mm or 44mm ports for 964 and 993 3.6ltr engines
  • AMS intake manifolds are cast in aluminium and developed using Computational Fluid Dynamics modelling
  • The AMS intake T-piece and resonance-flap components are CNC-machined with a black anodised finish
  • Supplied Bosch T-MAP sensor is rated at 1.15 bar, with a 3.0-bar version listed as an option


Base Kit Contents

  • AMS high-flow intake T-piece with vacuum and Bosch T-MAP sensor ports
  • AMS fuel-rail kit with fittings
  • Bosch 82mm electronic throttle body and connector kit
  • AMS CNC-machined resonance-flap kit with sealed roller bearings
  • Bosch 1.15-bar temperature and pressure sensor with connector
  • Throttle, resonance-flap and intake-adapter rubber sleeves with hose clamps
  • Vacuum canister, solenoid, check valve, connector kit and hoses
  • Required fasteners and fittings


Configuration Information

Separate configurations are offered for two-bolt and three-bolt cylinder heads, with versions designed either to include or exclude the pair of AMS GT3 intake manifolds. Confirm the required cylinder-head pattern, adapter port diameter and manifold configuration before selection.

FAQs

  • Does every kit include the electronic throttle body?
    Yes. The common base specification includes the Bosch 82mm electronic throttle body and its connector kit.
  • Are GT3 intake manifolds included?
    This depends on the selected configuration. The manufacturer lists separate versions with and without the pair of AMS GT3 manifolds.
  • Does the installation require calibration?
    The electronic throttle, T-MAP sensor, injectors and resonance-flap control must be correctly configured within the vehicle's compatible engine-management system.
Special Order item
96411051001
Product Information
Product Information
Grommet for air intake distributor.



Fits:
Porsche 964 C2 / C4 / RS 1989-94
Porsche 993 C2 / C4 / RS / Turbo 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 21

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96411051001
96411051001

The product you are viewing cross references to these numbers
AMS9050289
Product Information
Product Information

Adapt Motorsport GT3 intake manifolds for air-cooled Porsche 911 engines using the brand's intake conversion system. Supplied as a pair, they combine cast-aluminium construction with geometry developed specifically for the shorter spacing of air-cooled engines.

Fits:

  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93
  • Porsche 993 (911) C2 1994-97
  • Porsche 993 (911) C4 1994-97
  • Porsche 993 (911) RS 1994-97
  • Porsche 993 (911) C2S 1994-97
  • Porsche 993 (911) C4S 1994-97
  • Porsche 993 (911) TURBO 1994-96
  • Porsche 993 (911) TURBO S 1994-97


What This Product Does

These manifolds adapt the Porsche GT3 intake manifold concept for air-cooled 911 engine architecture. Their interfaces accommodate the shorter engine spacing, while computational fluid dynamics modelling was used during development to refine the internal airflow geometry.

Functions

  • Provides GT3-style intake manifolds for compatible air-cooled engine conversions
  • Interfaces with Adapt Motorsport DBW intake adapters and throttle kits
  • Provides vacuum connections for the brake booster and idle-air bypass
  • Supports additional vacuum-source requirements within a custom installation
  • Uses discreet tabs to secure wiring and vacuum-control components


Technical Details

  • Supplied as a pair of intake manifolds
  • Cast-aluminium construction
  • Designed for the shorter intake spacing of air-cooled Porsche 911 engines
  • Factory-style external lugs are omitted for a cleaner installation
  • Additional integrated vacuum ports
  • Matching adapter sleeves are optional components for connection to the intake adapters, throttle body and resonance flap

FAQs

  • Is this a complete intake system? This product consists of a pair of intake manifolds. Matching adapter sleeves and other intake-system components are separate elements.
  • What material are the manifolds made from? They are manufactured from cast aluminium for a factory-style appearance.
  • Are vacuum connections included? Yes. The manifolds incorporate ports for brake-booster vacuum, idle-air bypass and other vacuum-source requirements.
  • Can they be used with electronic throttles? They are designed to integrate with Adapt Motorsport DBW intake adapters and throttle kits.

Check fitment for your specific vehicle, engine specification and intake conversion before ordering.

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About Inlet Manifold

Air Inlet Manifolds – Precision Airflow Distribution for Porsche Engines

Air inlet manifolds, often referred to as intake manifolds, are vital components in Porsche engines that ensure even air distribution to each cylinder. By controlling the air supply entering the combustion chambers, these manifolds optimise engine breathing, improving fuel efficiency, throttle response, and overall performance.

At Design911, we supply a wide range of genuine and high-quality air inlet manifolds for numerous Porsche models, including  911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each unit is crafted from high-strength materials to deliver consistent airflow, exceptional durability, and precise fitment — maintaining your Porsche’s power and refinement.

What Do Air Inlet Manifolds Do?

The air inlet manifold is a critical part of the intake system that manages and distributes air from the throttle body into the engine’s cylinders. Its functions include:

  • Delivering uniform airflow to each cylinder for efficient combustion.
  • Optimising torque and power output across all engine speeds.
  • Balancing air pressure for smoother idling and acceleration.
  • Enhancing engine cooling and fuel economy through consistent airflow management.

In performance-oriented Porsche engines, the air inlet manifold is carefully tuned to maximise airflow dynamics — contributing directly to the car’s responsiveness and driving feel.

Why Do Air Inlet Manifolds Fail?

Air inlet manifolds operate under constant pressure, heat, and vibration, which can lead to deterioration over time. Common causes of failure include:

  • Cracks or leaks in plastic or aluminium housings due to heat cycling.
  • Carbon buildup restricting airflow through the manifold runners.
  • Faulty gaskets or seals allowing unmetered air to enter the system.
  • Vacuum leaks affecting idle stability and performance.
  • Mechanical damage caused by backfires or overpressure.

Symptoms of a failing air inlet manifold may include rough idling, loss of power, engine misfires, increased fuel consumption, or a check engine light related to air intake irregularities.

Why Replace a Damaged Air Inlet Manifold?

A cracked or leaking air manifold can cause air imbalance, poor combustion, and reduced engine efficiency. Replacing the component restores smooth airflow, optimises fuel economy, and protects engine health.

Benefits of replacement include:

  • Restored airflow and balanced combustion.
  • Improved throttle response and power delivery.
  • Reduced emissions and improved fuel efficiency.
  • Long-term reliability with manufacturer-quality precision.

All air inlet manifolds available at Design911 are made with high-quality materials, precision-engineered sealing surfaces, and optimised airflow geometry — ensuring lasting durability and peak performance in both standard and high-performance Porsche engines.

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