MRM Performance B58 5" Catless Downpipe (BMW F/G Series, Toyota Supra)

**In Stock & Ready To Ship** MRM Performance is proud to introduce our new B58 5" Catless Downpipe, designed to maximize exhaust flow and minimize backpressure! Unlike most downpipes currently available, we have produced a 5" downpipe, which allows your turbo to breath freely with minimal restriction. An added benefit to the 5" design is a more aggressive, and deeper exhaust note compared to the 4.5" Catless Downpipes. Features: High Flow 5" Design Faster Turbo Spool Deeper & More Aggressive Exhaust Note Compared To 4.5" Counterparts Gains of 40-60whp with tune Decrease WGDC% 304 Stainless Steel Free MRM Performance Decal Included Fitment: Fits all models with B58 (Gen 1) or B58TU (Gen 2)!* *Does not fit B58 models with OPF emissions system. Mostly found in Europe/Asia. BMW: F-Series B58 M140i M240i 340i 440i 740i G-Series B58 B58TU (Gen1 & 2) M140i M240i M340i M440i 540i 740i X3 M40i X4 M40i X5 40i X6 40i X7 40i Toyota: A90 A91 Supra Installation Tips: Make sure