Direct-fit catless downpipe for the N57D30A engine in E90-E93 335d models. Made from SS304 stainless steel, it’s built for fast-road or track-day use where maximum flow and throttle response matter more than emissions compliance.
Replaces the restrictive OEM catalytic downpipe with zero fabrication needed
Reduces back pressure to improve turbo spool and mid-range torque - especially effective on stage 1 or stage 2 tuned N57s
Fits only the listed E90/E91/E92/E93 335d chassis; not compatible with 535d, X5 or X6 variants despite shared engine codes elsewhere
Wagner part number 500001009 - no rebranding, no substitutions
