Description
The CARGRAPHIC GT3-Look Cylinder-Back Valved Sport Exhaust System delivers a race-inspired GT3 aesthetic with dual-mode SOUND / SUPER SOUND, allowing both practical cruising and aggressive performance driving. Built from SS304L stainless steel, this system is precision-engineered for maximum flow, performance gains, and a refined yet aggressive exhaust note.
Kit Includes:
- Sport manifold set with 2" / 50.8mm primaries and 2x 200cpsi Ø130mm HD Tri-metal catalytic converters
- Center silencer replacement – 2-piece X-pipe, open with merged gas flow and 2 integrated exhaust valves
- Wheel-arch silencer set with flex-pipe connections
- 100mm / 4.0" Sport double-end tailpipes, GT3-look, round slash-cut with stainless steel liner – Carbon-Matt finish
- Optional CARGRAPHIC SS304L tailpipe trims in various finishes (Mirror, Matt-Black, Gloss-Black, Carbon-Matt, Carbon-Gloss, Perforated insert)
Compatibility:
- Porsche 991.1 Carrera / Carrera 4 – 3.4L
- Porsche 991.1 Carrera S / Carrera 4S / GTS – 3.8L
Note: GT3-style body conversion kit required for proper tailpipe cut-out.
Features & Performance:
-
Dual-mode SOUND / SUPER SOUND exhaust valves:
- Valves closed: Quieter, tuned sporty note for cruising
- Valves open: Aggressive, amplified SUPER SOUND with burbling and backfire
- No drone or resonation even with additional CARGRAPHIC components
- Perfectly matched exhaust components for optimized flow
- Fully OBD2 compliant – no CEL / check-engine light
- CNC mandrel-bent pipes with constant diameter for reduced backpressure
- Integrated vacuum exhaust valves with performance specification like factory OE
- Reinforced laser-cut brackets and durable Aeroquip fittings
- Weight reduction and maximized performance
- Improved throttle response, freer revving, and enhanced acoustics
- Performance gains: +20kW (27PS) power, +24Nm torque
- Dyno-tested, made in Germany
Optional Valve Control Notes:
- Porsche 991.1 Carrera S / GTS 3.8L: Factory valve control (including PSE) remains usable; CARGRAPHIC performance valve control optional for permanent open valves.
- Porsche 991.1 Carrera 3.4L: Requires CARGRAPHIC performance valve control or retrofit Porsche Sport exhaust control unit for dual-mode operation.
