Description
The CARGRAPHIC Sport Exhaust System Kit 1 is a high-performance motorsport-grade exhaust solution for Porsche 991 GT3 and GT3 RS models. Designed for maximum performance, aggressive sound, and significant weight savings, this system is export-only and not road-legal, perfect for track use.
Constructed entirely from lightweight SS304L stainless steel with CNC mandrel-bent pipework, this kit maximizes exhaust flow while maintaining precise sound tuning and reliability. All components are fully OBD2 compliant, meaning no check engine light (CEL) or ECU/DME programming is required.
Fitment:
- Porsche 991.1 GT3 3.8L
- Porsche 991.1 GT3 RS 4.0L
- Porsche 991.1 R 4.0L
- Porsche 991.2 GT3 / GT3 RS 4.0L (without GPF)
System Components:
- CARGRAPHIC Connection pipe set with integrated 74mm exhaust valves (from catalytic converters to final silencer)
- CARGRAPHIC Sport wheel arch silencer set with reinforced band straps
- CARGRAPHIC Connection pipe set from wheel arch silencers to final silencer
- Fitting kit
Key Features:
- Export Version – Motorsport only, not road-legal
- Fully OBD2 compliant – no check engine light, no ECU/DME reprogramming required
- Significant weight savings (~7.5 kg vs stock exhaust)
- Perfectly matched components for optimal performance and sound
- Absorptive silencer design for clear, aggressive tone without drone or resonance
- CNC mandrel-bent pipework with constant diameter
- Reinforced laser-cut brackets for stability
- Olive and slide connections for easy installation and perfect adjustment
- Aeroquip fittings to allow heat expansion without cracking
- Reduced backpressure and operating temperature
- Improved throttle response and freer revving
- Model-specific tuned sound, maintaining Porsche character
- Dyno-tested high-performance components
- Made in Germany
Optional Valve Control Upgrades:
-
2-Mode Control Unit:
Sport Mode – valves permanently open
Automatic Mode – OEM valve control active -
3-Mode Control Unit:
Sport Mode – valves permanently open
Comfort / Noise Restricted Mode – valves permanently closed
Automatic Mode – OEM valve control active
