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CARGRAPHIC GT Sport Exhaust System with heating and ID42 GT manifolds Porsche 964 Carrera 2/4/RS ❭ CARP64GTKITRH
- 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
Fits:
Porsche 964 C2 / C4 / RS
Product description:
CARGRAPHIC GT Sport Exhaust System SS304L
Consisting of:
2x CARGRAPHIC ID42 GT manifolds with ID 42mm primaries and enlarged 2,5" / 63,50mm flared end collector boxes
CARGRAPHIC link pipe set with / without 2x200cpsi Ø110mm HF catalytic converter with heating Ø120mm
CARGRAPHIC sport rear silencer with Aeroquip flanges, Tailpipe outlet right
Tailpipe: 1x CARGRAPHIC sport tailpipe Ø89mm, round, open - mirror polished
Adapter set heater hoses
Fitting kit including gaskets, bracket and band straps
TÜV SOUND Version
NO DRONE OR RESONATION even in combination with other CARGRAPHIC exhaust components fitted.
Key Features & Benefits:
- Complete system, including 2× stainless steel GT manifolds (ID 42 mm primaries with flared collector boxes),high-flow catalytic converter set or straight through link pipes and sport rear silencer — all configured for RH tailpipe exit, no exhaust valves.
- Made entirely from lightweight, high-quality SS304L stainless steel for durability, corrosion resistance, and long-term reliability — ideal for spirited driving or restoration builds.
- Designed for “TÜV” compliance (option with catalysts), while delivering a more aggressive exhaust note, improved throttle response, freer revving and performance gains compared to stock exhaust. cargraphic.de Reduced back-pressure and optimized flow — leads to smoother engine breathing, potential gains in horsepower/torque, more immediate throttle response and enhanced driving dynamics.
- Upgraded mounting hardware, mandrel-bent pipes and optimized geometry ensure correct fitment, easy installation (with included gaskets, clamps, brackets), and good clearance to engine components.
- Lightweight construction also contributes to modest weight savings compared to stock exhaust components — beneficial for handling and responsive driving.
Why Choose This Exhaust System?
The original exhaust on older 964 models can be restrictive in flow, heavy, and produce a muted sound. Switching to this CARGRAPHIC system unlocks the engine’s full potential: better exhaust flow, sharper throttle response, more pronounced exhaust tone, and improved performance — all while retaining reliability and proper fitment. It’s an ideal upgrade for enthusiasts seeking classic 964 sound and performance without resorting to race-only systems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
CARP64GTKITRH
The product you are viewing cross references to these numbers
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16

Fits:
Porsche 991 Carrera S 3.8L
These simple U/J pipes remove the mufflers that are tucked up in the rear quarter panels. Why the reason for these I do not know. Typically in the past we either see a main centre muffler or 2 mufflers with catalyst pipes. So this was the first simplest part to change out. Keeping the same diameter for a perfect OEM replacement, these pipes are straight through which not only eliminates any muffler packing or baffling, but also the weight. Each stock muffler weighs approximately 15.6lbs. The Designtek Secondary Exhaust Muffler Bypass Pipes are about 3lbs each. Now eliminating restriction, we have also saved about 25lbs off the rear end. Because this part still retained the factory headers with cats and the factory center muffler, it added a slightly deeper tone to the exhaust but not a drastic droning change that a full exhaust could. Upon revving the car out stationary and on the dyno, you could hear the tone change nicely as you past the 4000rpm mark.
Garage Notes: The pipes sometimes rub on the heatshields causing a resonation through the car. This can be sorted by redressing the heatshields but isn't a straight forward bolt up and go replacement.
The sound its self is quite impressive and very sporty from the outside but to drive causes a pretty bad droning sound under normal driving conditions. This exhaust peaks at 101decibels
According to the factories dyno test, the secondary muffler bypass pipes really start achieving performance from 3700rpm all the way to redline. With a baseline test in 3rd gear and all wheel drive (have to for the dyno and no warning lights), the car made 344HP and 289ft/lbs of torque. Based on the ambient temperature, the factories Mustang Dyno, and 91octane fuel, this is about right considering the car comes with 400bhp. With the addition of our pipes, the car put down 358HP and 298ft/lbs of torque gaining 14HP and 9ft/lbs at the peak.
Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009913
The product you are viewing cross references to these numbers
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16

Porsche 991 Carrera 3.4L
Porsche 991 Carrera S 3.8L
The secondary sports exhaust boxes are designed to give the car a deeper sound, these car be added to the factory exhaust parts and replace the two side muffler cans.
Powerful, robust and sporty. Better still, it can be further enhanced thanks to the sports exhaust system, featuring a modified secondary sports exhaust boxes, the sound varies with driving behaviour, ranging from a robust output during normal road driving to a distinctively more aggressive tone during performance use.
Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009923
The product you are viewing cross references to these numbers
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16

Fits:
Porsche 991 C2S / C4S
Click 'Zoom in' for large parts diagram.
3606009104 replaces No 17.
Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009104
The product you are viewing cross references to these numbers
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