Fabspeed Exhaust

Fabspeed Exhaust Catback Competition Race X-Pipe. 

The ultimate lightweight cat-back exhaust system for the 991 GT3 / GT3 RS saves 54lbs (24kg) off the rear of the vehicle and is perfect for competitive track use, high performance drivers education events, or aggressive street sound.

FEATURES:
• Fits all Porsche 991 GT3 / GT3 RS models (2014-2016)
• Perfect exhaust solution for maximum performance and sound during competitive track use, high performance drivers education events, or simply achieving an aggressive and exciting street sound.
•   Saves over 54lbs (24kg) from the rear of the 991 GT3 which improves handling and acceleration by replacing the bulky factory center muffler and side mufflers
•   Engineered and manufactured with 3" (76mm) T304L stainless steel tubing with integral tuned center X-Pipe to 70mm outlets.
•   Bolt-on installation' no cutting or welding required
•   Includes two (2) 90 degree Turndown Tips for track use.
•   All Fabspeed performance products are backed by Fabspeed's Lifetime Warranty

NOTE: This is a straight pipe, racing oriented exhaust system built to be light and make power. As a result, the volume level will be very high inside the vehicle. 



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FSPOR991GT3CRX

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Fabspeed Deluxe Dual Style Tips, Titanium.

The Fabspeed Deluxe Dual Style Exhaust Tips are a premium visual and finishing upgrade designed for the 2014–2016 Porsche 991 GT3 and GT3 RS.

Fits:

• Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16  

Featuring larger 100mm outlets compared with approximately 88mm factory tips, they give the rear of the GT3 a wider, more aggressive appearance while retaining a factory-style fit.

The tips are designed to bolt directly to the OEM centre muffler and can also be used with compatible aftermarket exhaust systems that accept factory-style exhaust tips.

A lightweight holder plate is used to secure the tips in position while maintaining correct alignment with the rear bumper and exhaust outlet.

What This Product Does:
Exhaust tips form the visible final outlet of the exhaust system.

Their main purpose is to direct exhaust gases away from the rear of the vehicle while providing a finished appearance at the exhaust outlet.

The Fabspeed Deluxe Dual Style Tips are primarily designed to:

• Increase the visual size of the exhaust outlets
• Give the GT3 a more aggressive rear appearance
• Replace damaged or deteriorated factory exhaust tips
• Maintain correct exhaust outlet positioning
• Provide secure attachment to the centre muffler
• Offer a choice of premium finishes
• Work with the factory centre muffler
• Work with compatible aftermarket exhaust systems

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

Symptoms Of Wear Or Failure:
Exhaust tips are exposed continuously to exhaust heat, condensation, road debris and environmental contamination.

Common signs of deterioration include:

• Heavy surface corrosion
• Pitting or staining
• Burnt or permanently discoloured surfaces
• Scratches or cosmetic damage
• Dents from impact
• Cracked welds or mounting points
• Loose mounting hardware
• Rattling from the exhaust-tip assembly
• Tip movement when touched
• Poor alignment within the bumper opening
• One outlet sitting lower or further outward than the other
• Excessive soot build-up
• Damaged carbon-fibre outer sections where fitted
• Peeling or deteriorated surface coatings
• Contact between the tip and surrounding bumper or trim

Some discoloration and soot accumulation are normal on performance exhaust systems and do not necessarily mean the tip requires replacement.

Why Replacement Matters:
In many cases, exhaust-tip replacement is primarily cosmetic. Worn, heavily scratched, corroded or discoloured tips can detract significantly from the appearance of the rear of the vehicle.

However, replacement becomes more important where the tip or mounting system is physically damaged.

A loose or misaligned exhaust tip can:

• Rattle during driving
• Contact the bumper or diffuser
• Damage surrounding trim
• Move excessively during exhaust-system vibration
• Sit incorrectly within the rear valance
• Eventually loosen further or detach

Replacing damaged tips and ensuring the mounting hardware is secure helps restore correct alignment and prevents unnecessary contact with surrounding bodywork.

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FSPOR991GT3DLTTI

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Fabspeed Long Tube Competition Race Header System.

The Fabspeed Long Tube Competition Race Header System is a motorsport-focused exhaust upgrade developed for the 2014–2016 Porsche 991 GT3, GT3 RS and 911 R.

Fits:

• Porsche 991.1 R 4.0L (500 Bhp) 2016
• Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16  

Designed specifically for racing, track and closed-course applications, the system replaces the restrictive factory header, catalyst and side-muffler arrangement with a high-flow long-tube exhaust configuration engineered to maximise horsepower, torque and throttle response.

The package combines:

• Long-tube competition race headers
• Burns Stainless high-velocity merge collectors
• Integral side muffler bypass pipes
• Premium Helical exhaust valves
• High-flow T304 stainless-steel construction

The system was developed through CAD modelling, Dynojet testing and track development to improve exhaust flow throughout the engine's operating range.

What This Product Does:
The exhaust headers collect combustion gases as they leave each cylinder and direct them into the remaining exhaust system.

Header length, primary-pipe diameter, collector design and exhaust restriction all influence how efficiently these gases leave the engine.

The Fabspeed Long Tube Competition system is designed to:

• Increase exhaust gas flow
• Reduce exhaust restriction
• Improve exhaust scavenging
• Increase horsepower
• Increase torque
• Improve throttle response
• Strengthen mid-range power delivery
• Improve high-RPM breathing
• Reduce rear exhaust-system weight
• Produce a significantly more aggressive motorsport exhaust note
• Bypass restrictive factory side mufflers
• Provide valved control within the side-muffler bypass arrangement

This system is intended primarily for maximum track performance rather than road-going refinement.

Symptoms Of Wear Or Failure:
Factory GT3 exhaust components are exposed to extreme temperatures, vibration and repeated thermal cycling.

Common symptoms of deteriorating headers, catalysts or side mufflers can include:

• Ticking or tapping from the header area
• Blowing or hissing exhaust leaks
• Black soot around flange connections
• Cracked headers or welds
• Damaged or warped header flanges
• Catalyst rattling
• Reduced high-RPM performance
• Sluggish throttle response
• Excessive exhaust heat
• Metallic rattling from mufflers
• Broken internal muffler components
• Loose exhaust mounting hardware
• Increased exhaust vibration
• Check Engine Light relating to catalyst efficiency
• Sulphur-like smell from a deteriorating catalyst
• Visible heat damage around exhaust joints

Similar symptoms can also result from damaged exhaust gaskets, oxygen sensors or heat shields, so complete diagnosis is recommended before replacing components.

Why Replacement Matters:
A damaged or leaking header can allow extremely hot exhaust gases to escape into the surrounding engine area.

A deteriorating catalyst or internally damaged muffler can also increase exhaust restriction.

Continued use of damaged components may contribute to:

• Reduced engine performance
• Poor throttle response
• Increased exhaust temperatures
• Additional stress on surrounding components
• Exhaust leakage
• Unwanted vibration or rattling
• Further damage to adjoining exhaust components
• Replacing deteriorated parts restores a secure exhaust path.

For a vehicle with serviceable factory components, the Fabspeed system should be regarded primarily as a competition performance, sound and weight-reduction upgrade.

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FSPOR991GT3LTRHS

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Fabspeed Rennsport Muffler. 

The ULTIMATE OEM style high performance replacement muffler for your GT3

FEATURES:
•   Fits all Porsche 991 GT3 / GT3 RS vehicles 2014-2016 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
•   Paired with our Side Muffler Bypass Pipes this muffler adds +27 ft/lbs of TQ and +16 WHP or +18 HP at the crank!
•   4 different tip options available
•   Completely retains PSE valved exhaust functionality
•   No Check Engine Light guaranteed
•   This cat-back system is emissions legal in all 50 states and 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. We wanted to design a muffler replacement that not only fixed that issue but also improved on the OEM design. Using our 25+ 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 GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast X-Pipe for optimal exhaust scavenging. 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 catless race headers! Pair this with Fabspeed Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant GT3 exhaust. This muffler is guaranteed to NEVER BREAK or fail.

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 991.1 GT3RS test car, paired with Fabspeed 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 10 WHP or more, and peak WHP is up from 446 to 454! That’s a gain of 8 WHP or 9 HP at the crank.

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.

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FSPOR991GT3RSM

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