Fabspeed Exhaust

Fabspeed Center Muffler Bypass Pipe.

The Fabspeed Center Muffler Bypass Pipe is a high-performance replacement for the factory center muffler on 2006–2009 Porsche 997 GT3 and GT3 RS models.

Fits:

• Porsche 997 MK1 GT3 / GT3 RS 2006-09

Designed to replace the original center silencer, the system creates a freer-flowing exhaust path while producing a more aggressive, motorsport-inspired exhaust note. Fabspeed's crossover or “talk-pipe” design blends exhaust gases from the left and right cylinder banks, creating a smoother and more distinctive exhaust sound.

Constructed from 14–16 gauge T304 stainless steel, the bypass pipe is designed to withstand high exhaust temperatures, moisture and repeated heat cycles while reducing weight at the rear of the vehicle.

Fabspeed lists performance gains of approximately 10 hp and 6 lb-ft of torque, together with a 10 lb weight saving compared with the factory center muffler. Actual results can vary depending on vehicle condition and operating conditions.

What This Product Does:
The factory center muffler reduces exhaust noise by routing exhaust gases through an internal silencing structure. While effective at controlling sound, the muffler also adds weight and creates additional restriction in the exhaust path.

The Fabspeed Center Muffler Bypass Pipe replaces this component with a more direct exhaust route.

Its main benefits include:

• Reducing exhaust restriction
• Improving exhaust gas flow
• Reducing weight at the rear of the vehicle
• Producing a louder and more aggressive GT3 exhaust note
• Blending exhaust pulses from both cylinder banks
• Improving throttle response
• Supporting increased horsepower and torque
• Retaining Sport Mode functionality when used with the factory side mufflers
• Replacing the failure-prone original center muffler

The bypass system retains the original side mufflers, allowing the factory Sport Mode exhaust control to remain functional when they are retained.

Symptoms Of Wear Or Failure:
The original GT3 center muffler is exposed to extremely high exhaust temperatures, pressure fluctuations, vibration and repeated heating and cooling cycles.

Fabspeed specifically describes the factory center muffler as failure-prone. It also notes that repeated expansion and contraction of the muffler casing can contribute to metal fatigue and cracking over time.

Common symptoms of a deteriorating center muffler may include:

• Cracks or splits in the muffler casing
• Cracking around welds or seams
• Exhaust gas leaks
• Black soot around cracks or joints
• Blowing or hissing exhaust noises
• Sudden increase in exhaust volume
• Metallic rattling from the center muffler
• Loose or damaged internal components
• Deformation or movement of the muffler casing
• Exhaust fumes around the rear of the vehicle
• Damaged or corroded mounting points
• Abnormal vibration from the exhaust system
• Evidence of fatigue around repeatedly stressed areas

Track use and repeated high-temperature operation can place additional thermal and mechanical stress on the original muffler.

Why Replacement Matters:

• A cracked or damaged center muffler can allow hot exhaust gases to escape before reaching the intended outlets.
• Apart from creating excessive or irregular exhaust noise, leaks may expose surrounding components to additional heat and allow soot to accumulate around the damaged area. Cracks can also continue to propagate as the muffler repeatedly heats, expands and cools.
• Replacing a deteriorated center muffler restores a secure exhaust path and prevents continued deterioration of the damaged component.
• For owners seeking a performance upgrade rather than simply repairing the factory exhaust, the Fabspeed bypass pipe removes the original silencer entirely. This eliminates the factory center muffler as a potential failure point while reducing restriction and rear-mounted weight.

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

FSPOR997GT3CMB

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Fabspeed Center Outlet Conversion Tips.
The Fabspeed Porsche 996/997.1 Carrera GT3 Center Outlet Conversion Tips are a specialist exhaust conversion designed to give compatible Porsche 911 Carrera models the distinctive centre-exit exhaust appearance associated with the GT3.

Fits:

• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 997 MK1 GT3 / GT3 RS 2007-09  

Designed for vehicles fitted with a GT3-style rear bumper featuring a centre exhaust opening, the conversion uses extended exhaust outlets to redirect the tailpipes from the Carrera's conventional exhaust location towards the centre of the rear bumper.

The system retains the original side-mounted muffler layout while changing the location of the visible exhaust outlets, providing a motorsport-inspired appearance without requiring the exhaust mufflers themselves to be relocated.

Manufactured from 14–16 gauge T304 stainless steel, the conversion tips are designed for straightforward bolt-on installation without cutting or welding.

What This Product Does:

• The Fabspeed conversion tips change the location at which the Carrera's exhaust outlets appear at the rear of the vehicle.
• A standard Carrera uses exhaust outlets positioned towards the outer sections of the rear bumper.
• When a GT3-style bumper with a centre exhaust opening is installed, the standard exhaust outlet position no longer corresponds with the bumper design.
• The Fabspeed conversion system solves this by extending the exhaust outlets towards the centre of the vehicle.
• This allows the exhaust gases to exit through the central opening in the GT3-style rear bumper while retaining the side-mounted muffler arrangement.

GT3-Inspired Centre Exhaust Apperance:
The main purpose of this product is to provide the distinctive centre-exit exhaust configuration associated with Porsche's motorsport-inspired GT3 models.

The conversion provides:

• GT3-inspired centre exhaust styling
• Correct outlet positioning for a GT3-style rear bumper
• A cleaner rear-bumper conversion
• Motorsport-inspired appearance
• Retention of the Carrera side-muffler layout
• A purpose-designed alternative to custom exhaust fabrication

This is primarily an exhaust routing and styling conversion, rather than a conventional performance component intended to create substantial horsepower gains by itself.

Why Install A Centre Outlet Conversion:
This product is primarily intended for owners converting a Carrera to a GT3-style rear bumper and exhaust appearance.

Reasons for installing the system include:

• GT3-inspired styling
• Centre-exit exhaust conversion
• Correct exhaust positioning for a GT3-style bumper
• Avoiding custom exhaust fabrication
• Retaining the existing side-muffler layout
• Choice of exhaust-tip finishes
• Straightforward bolt-on installation

It provides a purpose-designed solution for completing the rear appearance of a GT3-style Carrera conversion.

Adjustable slip-on 90 degree turndown pipe outlets for Fabspeed Motorsport GT3 exhaust systems. GT3 tip holder with 90 degree turn downs are also a simple do-it-yourself slip-on for all Porsche GT3 OEM style center mufflers. Any GT3 owner can quickly aim the exhaust noise / flow towards the ground or aim exhaust away from a Track Sound monitor (left to right simply loosen clamp and swivel pipes) you can thereby quickly re-direct and control the exhaust volume; perfect for decibel-limited motorsport venues! Typically a 3db sound reduction is achievable.                                                                   

These outlets are great for reducing the volume of your Fabspeed-equipped GT3 / GT3 RS at track and motorsports events.  The adjustable turndown tips can be quickly adjusted to point the exhaust away from any track-side testing equipment to help you stay within many venues' sound limit regulations. The beauty of the Fabspeed system is that you can buy the Fabspeed tip holder and have the beauty of Matte Carbon fiber tips, Stainless steel polished, ceramic coated black tips or brushed stainless steel tips and LASTLY remove any choice of tips and install turndowns in minutes for Track Events and drop -3DB in sound levels.

FEATURES:

• Fits all Porsche GT3 / GT3 RS vehicles equipped with a Fabspeed Motorsport center exhaust product (Center Muffler Bypass or Maxflo Performance Exhaust) or the Porsche GT3 OEM Muffler *Requires the  Fabspeed 997 GT3/GT3 RS Deluxe Dual Style Tips

• Constructed from high quality T304L stainless steel- lightweight water jet precision CNC cut and hand welded.
•  Simple bolt-on installation; no cutting or welding required
•  Includes all required mounting hardware
•  90 degree turn down pipes can be aimed Left , Right or 90 degrees to the ground which reduces sound immediately by 3db or more. Can help you not GET BLACK FLAGGED for being too loud at a Race track.
•   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

Fabspeed Deluxe Dual Style Tips.

The Fabspeed Deluxe Dual Style Exhaust Tips are a premium styling and replacement upgrade for the 2006–2009 Porsche 997 GT3 and GT3 RS.

Fits:

• Porsche 997 MK1 GT3 / GT3 RS 2006-09

Featuring larger 100mm outlets compared with the approximately 88mm factory tips, they give the rear of the GT3 a more substantial and performance-inspired appearance while retaining factory-style fitment.

The tips use a lightweight holder plate and are designed to bolt directly to the original Porsche centre muffler. They can also be fitted to compatible aftermarket exhaust systems that accept factory-style exhaust tips.

Current finish options include polished, carbon fibre, satin black and titanium variants, allowing the appearance of the exhaust outlets to be matched to the vehicle.

What This Product Does:
Exhaust tips form the visible final outlet of the exhaust system, directing exhaust gases away from the rear of the vehicle while providing the finished appearance of the tailpipe assembly.

The Fabspeed Deluxe Dual Style Tips are designed primarily to:

• Replace worn or damaged original exhaust tips
• Increase outlet diameter from approximately 88mm to 100mm
• Give the Porsche 997 GT3 a more aggressive rear appearance
• Maintain factory-style centre muffler fitment
• Provide secure and correctly aligned exhaust outlets
• Offer a choice of performance-inspired finishes
• Allow straightforward installation without replacing the complete exhaust system

These tips are primarily an appearance and replacement upgrade rather than a significant engine-performance modification.

Symptoms Of Wear Or Failure:
Exhaust tips are constantly exposed to high temperatures, condensation, exhaust deposits and road contamination.

Common signs that the original tips may require replacement include:

• Surface corrosion or pitting
• Heavy soot accumulation
• Permanent staining or heat discolouration
• Peeling or deterioration of the finish
• Scratches or impact damage
• Dents or deformation
• Loose mounting hardware
• Excessive movement or vibration
• Rattling while driving
• Cracks around mounting points
• Tips sitting unevenly or incorrectly aligned
• Contact with the bumper or surrounding trim
• A worn appearance that cannot be restored through cleaning or polishing

Cosmetic deterioration alone may not affect exhaust operation, but damaged mounts or severe deterioration can allow an exhaust tip to become loose.

Why Replacement Matters:
Exhaust tips make up a prominent part of the rear appearance of the Porsche 997 GT3 and GT3 RS.

Ageing, stained or damaged tips can detract from an otherwise well-maintained vehicle. More importantly, a loose or distorted exhaust tip may vibrate, rattle or contact surrounding bumper components.

Continued movement can lead to:

• Damage to surrounding trim
• Unwanted rattling and vibration
• Increased stress on mounting hardware
• Incorrect exhaust outlet alignment
• Further deterioration of the tip mounting points

Replacing worn exhaust tips restores correct positioning and secure mounting while refreshing the appearance of the exhaust system.

Where the centre muffler and remainder of the exhaust remain in good condition, replacing only the tips is also a practical way to update the vehicle without the expense of replacing major exhaust components.

Related reference numbers
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FSPOR997GT3DLT

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Fabspeed Race Exhaust System.

The Fabspeed Race Exhaust System is a lightweight, performance-focused cat-back exhaust upgrade designed for the 2006–2009 Porsche 997 GT3 and GT3 RS.

Fits:

• Porsche 997 MK1 GT3 / GT3 RS 2006-09

Developed for drivers seeking a more aggressive motorsport-style exhaust character, the system replaces the factory rear exhaust arrangement with a combination of Fabspeed's Center Mini Maxflo Performance Exhaust System and Side Muffler Bypass Pipes.

This configuration significantly reduces the amount of silencing and restriction at the rear of the vehicle, producing a louder, more direct and Cup-car-inspired flat-six exhaust note.

Manufactured from high-quality 14–16 gauge CNC mandrel-bent T304L stainless steel, the system is engineered to withstand high exhaust temperatures while offering strong corrosion resistance and reduced rear-end weight.

What This Product Does:
The factory exhaust system controls noise while carrying combustion gases away from the engine and through the catalytic converters.

The Fabspeed Race Exhaust replaces much of the original rear silencing arrangement with freer-flowing performance components.

Its primary functions and benefits include:

• Reducing restriction in the rear exhaust system
• Improving exhaust gas flow
• Producing a much more aggressive exhaust note
• Reducing weight behind the rear axle
• Supporting improved throttle response
• Supporting increased engine performance
• Giving the GT3 a Cup-car-inspired exhaust character
• Replacing ageing factory rear exhaust components
• Providing durable stainless-steel construction

Because it is a cat-back system, it works downstream of the catalytic converters and does not itself replace the vehicle's catalysts.

Symptoms Of Wear Or Failure:
The original exhaust components on a 997 GT3 are exposed to extreme heat, vibration, condensation and repeated thermal cycles.

Common symptoms of deterioration can include:

• Rust or corrosion on exhaust components
• Cracks around welds or seams
• Blowing or hissing exhaust noises
• Black soot around leaking joints
• Rattling from muffler internals
• Loose exhaust clamps or mounting points
• Excessive vibration
• Exhaust fumes around the rear of the vehicle
• Unexpected increase in exhaust noise
• Damaged or distorted pipework
• Poor exhaust-tip alignment
• Reduced engine response where restriction or leakage is severe
• Heat damage around deteriorated exhaust joints

Similar noises can also come from heat shields, exhaust hangers or catalytic converters, so the complete exhaust system should be inspected before replacement.

Why Replacement Matters:
A deteriorating exhaust system can affect more than sound.

Cracks and leaking joints allow hot gases to escape before reaching the intended outlets. This can expose nearby components to excessive heat, create unwanted noise and allow soot to build up around the damaged area.

Loose or internally damaged silencers may also rattle or create additional exhaust restriction.

Replacing deteriorated rear exhaust components helps restore:

• A secure exhaust path
• Correct exhaust outlet routing
• Reduced unwanted leakage
• Reliable mounting
• Proper clearance from surrounding components
• Consistent exhaust operation

For vehicles with a healthy factory exhaust, the Fabspeed system is primarily a performance, weight-saving and sound upgrade.

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

FSPOR997GT3RACE

The product you are viewing cross references to these numbers

Fabspeed Rennsport Muffler. 

The ULTIMATE OEM style high performance replacement muffler for your GT3

FEATURES:
•    Fits all Porsche 997.1 GT3 and 997.2 GT3 / GT3 RS vehicles 2007-2008 and 2010 to 2011 worldwide
•   Constructed from CNC cut T304L stainless steel
•   Designed from 3D scans of the OEM muffler so we can achieve perfect bolt-on fitment
•   Will not break or crack like OEM GT3 mufflers do
•   Incorporates our signature cast X-pipe for superior flow and exhaust scavenging- versus any and all other brands
•   Paired with our Side Muffler Bypass Pipes this muffler adds +27 ft/lbs of TQ and +16 WHP or +18 HP at the crank!
•   3 different tip options available- Carbon Fiber, TITANIUM, Stainless steel polished, brushed or black coated.
•   Completely retains PSE valved exhaust functionality
•   No Check Engine Light guaranteed
•   This cat-back system is emissions legal in all 50 states, CARB approved exempt and emissions legal in the rest of the world
•   Built in house at Fabspeed Motorsport USA in Fort Washington, PA
•   Simple bolt-on installation, no cutting or welding required
•   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. Fabspeed Motorsport Engineers design a GT3 primary muffler replacement that not only fixed that issue but also greatly improved on the OEM design in multiple measurable ways. Using our 30+ years of air and water-cooled experience, we took the valve open tubing to 2.75in / 70mm which is the optimal diameter for GT3 engines to have low restriction but maintain high velocity and high RPM GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast 70mm 2.75" X-Pipe for optimal exhaust scavenging and maximum volumetric efficiency. The X merges the two cylinder banks without creating any restriction in exhaust flow. To maintain the factory muffler’s exhaust note and lack of drone, we mimicked Porsche’s 7 chamber design. This makes for a completely drone free muffler, even when running cat-less race headers! Using GT3 headers with cats or Fabspeed headers with HJS German EPA approved catalytic converters along with Fabspeed GT3 Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant lightweight GT3 exhaust. Fabspeed's GT3 center muffler is guaranteed to NEVER BREAK or fail- and OUTPERFORM any other aftermarket GT3 center muffler. 100% made in house at Fabspeed.
 
SOUND:
This muffler will have a very similar tone to the OEM muffler, however, it will be a bit louder with PSE turned on. It will also sound a bit smoother and higher pitched thanks to our signature X-pipe.

POWER:
On our 997.1/ 997.2 GT3 and GT3RS test car, paired with our Side Muffler Muffler Bypass Pipes, the Rennsport Muffler picked up an impressive 27 ft/lbs of TQ down low at 3,200 RPM. From 2,900 RPM all the way to 5,700 RPM it picks up =12 horsepower or more, and peak power at the wheels is up from 446 to 454! That’s a gain of over 12 HP at the crank- from simply swapping out the fragile restrictive OEM Porsche 997GT3 to the very latest GT3 RS Titanium OEM factory mufflers. BEST ADVICE- but and install a Fabspeed GT3 center muffler and SAVE you fragile OEM GT3 muffler for Concours shows and restoration. All GT3 OEM mufflers BREAK & EXPLODE when driven long and hard enough.

NOTE:
•   Requires OEM gaskets and hardware to be reused
•   If they are not available here are the necessary part numbers. 
•     2x Muffler band straps (99711111970)
•     2x Bolt for muffler band strap (90006736201)
•     2x Each Side Muffler to Center Muffler Gaskets (99711156390, 99711156190)  

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

Related reference numbers
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FSPOR9972GT3RSM

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Fabspeed Sport Headers.

The Fabspeed Sport Headers are a high-performance replacement for the factory exhaust manifolds and catalytic converter assemblies on the 2006–2009 Porsche 997 GT3 and GT3 RS.

Fits:

• Porsche 997 MK1 GT3 / GT3 RS 2006-09

Designed to improve exhaust flow throughout the engine's operating range, these headers use high-velocity 3-into-1 merge collectors to combine exhaust gases efficiently before they pass through the supplied 200-cell HJS Sport Catalytic Converters.

The system is manufactured from high-quality 14–16 gauge CNC mandrel-bent stainless steel, providing excellent resistance to heat, corrosion and repeated thermal cycling.

Fabspeed reports gains of approximately 22 horsepower and 37 lb-ft of torque, together with a 2 lb reduction in weight compared with the factory arrangement. Actual results will vary depending on vehicle condition, specification and operating conditions.

What This Product Does:
The exhaust headers collect combustion gases leaving the engine cylinders and direct them into the remainder of the exhaust system.

Efficient header design is particularly important on the naturally aspirated GT3 engine because exhaust pulse timing and scavenging influence how effectively the cylinders can clear spent gases and draw in the next intake charge.

The Fabspeed Sport Headers are designed to:

• Improve exhaust gas flow
• Reduce restriction compared with the factory header and catalyst arrangement
• Improve exhaust scavenging
• Increase throttle response
• Support increased horsepower and torque
• Produce a stronger sports-car exhaust note
• Provide high-flow catalytic converter performance
• Replace ageing or damaged factory exhaust manifolds
• Reduce a small amount of rear exhaust weight

The 3-into-1 pyramidal merge collectors are designed to combine the exhaust pulses from each cylinder bank smoothly, helping maintain gas velocity and reduce turbulence.

Symptoms Of Wear Or Failure:
The original headers and catalytic converters operate under extreme temperatures and experience repeated expansion and contraction throughout their service life.

Common signs of deterioration include:

• Ticking or tapping noises during cold starts
• Blowing or hissing sounds from the exhaust manifold area
• Black soot around leaking header joints
• Cracks in the manifold or welds
• Warped mounting flanges
• Broken or corroded mounting hardware
• Exhaust fumes around the engine or rear of the vehicle
• Increased exhaust noise
• Reduced throttle response
• Noticeable loss of engine performance
• Check Engine Light relating to catalyst efficiency
• Metallic rattling from inside a catalytic converter
• Sulphur-like or unusual exhaust smells
• Increased exhaust restriction
• Loss of power at higher engine speeds
• Excessive heat around the catalyst area

A catalytic converter can also deteriorate internally. The substrate may crack, melt or break apart, potentially restricting the exhaust path.

Why Replacement Matters:
A damaged or leaking exhaust header reduces the efficiency of the exhaust system and can allow extremely hot gases to escape into surrounding areas.

Cracks or leaking flanges can cause:

• Unwanted exhaust noise
• Reduced exhaust scavenging
• Heat exposure to surrounding components
• Loss of engine response
• Further deterioration of exhaust joints and hardware

A deteriorating catalytic converter can be equally problematic.

If the catalyst substrate becomes damaged or partially blocked, exhaust gases cannot leave the engine efficiently. Increased backpressure can reduce performance and place additional thermal stress on the exhaust system.

Replacing deteriorated headers and catalysts helps restore:

• A secure and leak-free exhaust path
• Efficient exhaust scavenging
• Correct exhaust gas flow
• Consistent throttle response
• Proper catalyst function
• Reduced exhaust restriction
• Reliable long-term exhaust operation

For vehicles with healthy factory components, upgrading to the Fabspeed system provides the additional benefit of freer-flowing headers and sport catalysts designed to improve overall engine response.

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

FSPOR997GT3SHDR

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