Upgrade the exhaust path of your Porsche 911 Turbo / Turbo S with the RENNVOX Downpipe with 200 Cell Catalytic Converter. Developed for the 991.1 / 991.2 platform and 3.8L flat-6 twin-turbo application, this vehicle-specific performance component is designed to reduce exhaust restriction while retaining a high-flow catalytic converter configuration.

The factory exhaust and catalytic converter assembly must balance emissions control, noise, refinement and production requirements. The RENNVOX upgrade uses a 200 Cell Catalytic Converter to support improved exhaust gas flow, sharper response and greater performance potential, while retaining a catalytic converter for a more road-oriented configuration than a catless system.

On the Porsche 911 Turbo / Turbo S, the exhaust components in this area play an important role in gas flow and engine breathing. The RENNVOX design is intended to help the turbocharged engine evacuate exhaust gases more efficiently and provide a stronger foundation for improved response and performance when paired with a compatible vehicle calibration.

Fitment is application-specific to the listed 991.1 / 991.2 chassis and 3.8L flat-6 twin-turbo configuration. Professional installation is recommended, and ECU calibration requirements can vary depending on the exact vehicle, local market specification and other modifications.

FAQ

Which Porsche models does this downpipe fit?

This listing is intended for the Porsche 911 Turbo / Turbo S using the 991.1 / 991.2 chassis and 3.8L flat-6 twin-turbo engine configuration shown above. Confirm the exact vehicle variant before ordering.

What is a 200 Cell Catalytic Converter?

A 200 Cell Catalytic Converter is a higher-flow catalytic converter configuration designed to reduce exhaust restriction compared with many factory assemblies while retaining a catalytic converter in the exhaust path.

Will the vehicle require ECU calibration?

Calibration requirements vary by vehicle specification, software version and other modifications. A qualified performance workshop should assess the vehicle before and after installation.

Is this product legal for road use?

Emissions, noise and roadworthiness requirements vary by jurisdiction. The vehicle owner and installer are responsible for confirming compliance with all applicable local regulations.