Revolutionary Wagner tuning downpipe kit with 300CPSI racing catalytic converter for Audi S4 B9 / S5 F5 3,0TFSI Take the performance of your Audi S4 B9 or S5 F5 3,0TFSI to a new level with our downpipe kit equipped with a state of the art 300CPSI racing catalytic converter. Technical features: Manufactured from high quality cast stainless steel 1.4301 (SS304) for unsurpassed durability and performance Complete with 2x Ø3 and adapter to original AGA for easy integration CAD-designed and flow-optimized to maximize exhaust flow and increase performance Equipped with a lambda probe connection at the OEM position for precise exhaust measurements Racing metal catalytic converter (300 CPSI EU6 coating) for optimum exhaust gas purification and performance optimization 100% accuracy of fit, enables easy replacement with the standard part Reduces the thermal load on the turbocharger and increases the service life Noticeable increase in performance due to back pressure reduction, resulting in a significant increase in torque Maximum performance. Incomparable driving experience: Our downpipe kit with 300CPSI racing catalytic converter for the Audi S4 B9 / S5 F5 3.0TFSI offers the perfect combination of quality, performance and reliability. Experience improved vehicle performance and an impressive driving experience on the road and on the race track. State-of-the-art technology, superior performance: Discover the future of emission control and performance optimization with our innovative downpipe kit, designed for enthusiasts who want to get the best out of their Audi. Wagner Tuning downpipe Kit 300CPSI EU6 for Audi S4 B9 3.0TFSI Part number 500001031 *Error display in the DME possible. Catalytic Converter Disclaimer It is to be noted that Wagner Tuning catalytic converters are intended to be used on OEM vehicles to optimize performance. They are NOT intended to be used in conjunction with an ECU tune. Wagner Tuning Inc. assumes no responsibility for damages caused by modifications made to a vehicle such as, a tuned ECU and/or 'burble' style tunes. Wagner Tuning Inc. is also not responsible for damages caused by engine malfunctions creating rich/lean conditions that are detrimental to the catalyst. A warranty audit will be performed on any claim regarding a catalytic converter. In order for a warranty to be honored, Wagner Tuning Inc. will require the purchaser to provide proof that the engine was unaltered and tuned to the original manufacturer’s specifications and maintained in proper operating condition. The end user assumes all responsibility regarding the legality of use of a non-OEM catalytic converter on their vehicle for the region in which it is used.