Revolutionary downpipe kit for BMW M2/M3/M4 F80/82/83/87: Highest performance and quality Experience the ultimate performance upgrade for your with our state-of-the-art downpipe kit. Developed from high-quality cast stainless steel 1.4301 (SS304) and equipped with innovative features, this kit offers an unparalleled combination of performance, reliability and style. Technical data at a glance: Made from high quality cast stainless steel 1.4301 (SS304) for maximum durability and longevity. Complete diameter Ø3inch (76mm): With adapter to original AGA for optimized exhaust flow and maximum performance. Precise CAD design and flow optimization ensure efficient exhaust gas routing and improved performance. Equipped with two lambda probe connections for precise exhaust gas monitoring and optimum performance optimization. Contains a high-quality racing metal catalytic converter with 200 CPSI and high-quality EURO 6 coating for efficient emission control and maximum performance. 100% accuracy of fit enables easy replacement with the standard part without complex modifications. Minimizes the thermal load on the turbocharger, which increases service life and optimizes performance. The reduction in back pressure results in a noticeable increase in power and significantly improved torque. Quality, performance, innovation: Our downpipe kit for BMW stands for outstanding quality, incomparable performance and innovative technology. Give your vehicle a performance boost and experience vehicle dynamics like never before. Discover the future of performance enhancement with our downpipe kit - perfectly matched to your BMW M2/M3/M4 F80/82/83/87. part number: 500001023 *Error display in the DME possible. Disclaimer for catalytic converters It should be noted that Wagner Tuning catalytic converters are intended for use on OEM vehicles for performance optimization. They are NOT intended for use in conjunction with ECU tuning. Wagner Tuning GmbH & Co. Kg. accepts no responsibility for damage caused by modifications to a vehicle, such as a tuned ECU and/or 'burble' style tunes. Wagner Tuning GmbH & Co. Kg. is also not responsible for damage caused by engine malfunctions that create rich/lean conditions that are detrimental to the catalytic converter. All claims regarding a catalytic converter are subject to a warranty check. In order for a warranty to be honored, Wagner Tuning GmbH & Co. Kg. requires the purchaser to prove that the engine has been set up unchanged and in accordance with the original manufacturer's specifications and has been kept in proper working order. The end user assumes all responsibility for the legality of the use of a non-OEM catalytic converter on their vehicle for the region in which it is used.