Description
The CARGRAPHIC Catalytic Converter Replacement Pipe Set for Porsche 991 Turbo / Turbo S 3.8L is designed for maximum flow and uncompromised performance. By replacing the factory catalytic converters with free-flowing stainless steel pipes, this system eliminates restriction, lowers exhaust backpressure, and sharpens acoustics while maintaining zero drone or resonance. Precision-built from SS304L lightweight stainless steel with mandrel-bent pipework, laser-cut flanges, and reinforced brackets, these cat-bypass pipes deliver dyno-proven gains of +16 kW (21 PS) and +25 Nm.
Note: This system is NOT OBD2 compliant – ECU/DME reprogramming is required. For CEL minimization, CARGRAPHIC recommends lambda sensor spacers, adapters, or mini catalytic converters.
Fitment:
- Porsche 991.1 Turbo / Turbo S 3.8L (2014–2016)
- Porsche 991.2 Turbo / Turbo S 3.8L (2017–2019, including Turbo S Exclusive)
System Components:
- CARGRAPHIC Catalytic Converter Replacement Pipe Set (cat-bypass pipes)
- Without catalytic converters
- Without exhaust valves
Key Features:
- Maximum flow design – removes factory catalytic converters
- Dyno-proven gains: +16 kW (21 PS) & +25 Nm torque
- Mandrel-bent pipework for consistent diameter and optimized flow
- SS304L lightweight stainless steel construction – robust and heat resistant
- Laser-cut stainless steel flanges & reinforced brackets for durability
- Olive & slide connections for easy installation and adjustment
- Reduced backpressure for sharper throttle response and freer revving
- Lower operating temperatures
- Improved acoustics – deeper, sharper tone without drone
- Model-specific tuning retains Porsche character
- Weight reduction vs OEM system
- PERFORMANCE – Made in Germany
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
