BMW M3 M4 3" Catless Exhaust Downpipes, F8x, S55, 2014 > ~ Kage VRSF Racing Downpipes S55 2015 2019 BMW M3, M4 & M2 Competition F80 VRSF 3.5 High Flow Single Mid pipe for S55 BMW M3 F80 M4 F82 MODE BMW F80 M3 & F82 F83 M4 & F87 M2 ARM S55 Catless Downpipes M3Parts VA Motorsports BMW S55 CATLESS DOWNPIPES F8X M2C M3 M4. BMW Catless Downpipes are now available at Bmwmpower247 through VR Speed Factory! Downpipes are a must have when adding power to your build and is also a requirement when running Stage 2 on Bootmod3 or MHD! All items are shipped directly from VRSF. Adding a downpipe will not only increase airflow through the exhaust, but will increase power, deepen louden the sound (as well as make the spooling of the turbos more prevalent to the ear!). The B58 downpipe is 4. 5" and constructed from stainless steel E9X N55 is 3. 5" and comes ceramic coated E9X N54 is 3" and constructed from stainless steel (V2) S55 is 3" and constructed from stainless steel F series N55 before 7 13 is 3. 5" and constructed from stainless steel F series N55 after 8 13 production is 4" and constructed from stainless steel Each downpipe will be without catalytic converters (catless) and is for off road intended use only. Coupon discount code "M3Parts" saves money at checkout on the entire Bmwmpower247 website!