MRM Performance B58 Full 4.5" Catless Downpipe

**OUT OF STOCK, NO CURRENT ETA**We have our MRM Performance 5" Catless Downpipes in Stock and Ready to Ship, with a reduced price of $329.99! MRM Performance Full 4.5" Catless Downpipe  Let your turbo breathe, unlike most other brands that immediately reduce size halfway through the downpipe, our downpipe diameter stays 4.5" for the full length of the downpipe, reducing in size at the very end where it meets the OEM exhaust. Features: Full 4.5" Downpipe Faster Turbo Spool Deeper & More Aggressive Exhaust Note Gains of 30-50whp with tune Fits RHD and LHD models with no modification necessary 304 Stainless Steel Free MRM Performance Decal Included Fitment: Our 4.5" Catless Downpipe fits ALL B58 Models!  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 Toyota Supra DOES NOT FIT B58 MODELS WITH OPF SYSTEM (ONLY APPLIES TO CERTAIN EUROPEAN/ASIA MODELS) Instal