ARM - 6" B58 Catless Downpipe - 240i/340i/440i/540i/640i/740i Charge Pipe When combined with wider or

When combined with wider or lower offset wheels

allowing you to tailor the exhaust note to match your driving style

With the most potent BMW inline-6 to date

Our charge pipes include a plugged 1/8″ NPT bung along with the couplers and clamps necessary for installation

promising long-lasting performance

ARM - 6" B58 Catless Downpipe - 240i/340i/440i/540i/640i/740i Charge Pipe When combined with wider orWatch our Sound Demo Video HIGHLIGHTS 6" High Flow Section Improved Exhaust Sound Faster Turbo Spool Safely Flash Stage 2+ Tunes SS304 Stainless Steel PROFILE The ARM 6" B58 Downpipe takes the title of being the largest catless downpipe available for the B58 platform! The sound coming from your B58 with the 6" section of the ARM B58 Downpipe will astonish you. Even deeper tones, even better sound, and improved turbo spool. The ARM 6" B58 Downpipe is