Welcome to the world of ultimate performance with our downpipe 200CPSI catalytic converter for your BMW with the N20 Motor. Designed to push the limits of your riding experience and take riding pleasure to a new level. Optimum diameter of 76mm: For an improved exhaust gas flow and optimized power delivery. High-quality stainless steel 1.4301 (SS304): A guarantee for durability, corrosion resistance and first-class quality. CAD-designed: Every detail has been carefully planned to ensure a perfect fit and optimum performance. Two lambda probe connections: Flexible and adaptable for different configurations. Racing main catalytic converter (200 cell/inch): Features a race-ready catalytic converter for maximum power and performance. 100% perfect fit: Easy to replace with the standard part without additional adjustments. Less thermal load on the turbocharger: Protects the turbocharger from excessive heat, promotes engine longevity. More power through back pressure reduction: Optimizes the exhaust gas flow and increases the performance of your BMW 125i for an impressive driving experience. Connection diameter of 105mm: For a smooth and precise installation. Noticeably more torque: Experience increased power and impressive torque that takes your vehicle to a new level. Ready to conquer the roads? Our downpipe 200CPSI catalytic converter is the perfect choice for anyone looking for performance and quality. The downpipe kit is suitable for the following vehicles with the N20 engine: BMW 125i F20 / F21 BMW 220i F22 / F23 BMW 228i F22 / F23 BMW 320i (x) F30 / F31 / F34 BMW 328i (x) F30 / F31 / F34 BMW 420i (x) F32 / F33 BMW 428i (x) F32 / F33 / F36 *replaces original BMW part number: 18327645666 Year of manufacture from 10/2012 Part number 500001011 Not approved in the area of the STVO. Disclaimer for catalytic converters Please note 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 deactivation of the boost cut-off. 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.