B58 True 4.5" Catless Downpipe bmw-m235i-2015 DOC Race uses the best

DOC Race uses the best brands because we know our customers demand the best

** Some European Spec vehicles may require re-use of top hat due to differences in emissions requirements

330i GT xDrive 2019-2017

2017 BMW 740e xDrive Spark Plug

B58 True 4.5" Catless Downpipe bmw-m235i-2015 DOC Race uses the bestFits all Gen 1 and Gen2 B58s (and supra) Introducing the BimmerNetwork B58 High Flow Catless downpipe. This is a TRUE 4. 5inch all the way until the exhaust meets the dp. This will bolt on to your oem exhaust(no modification needed), or can be cut at the taper and welded to a true custom upgraded exhaust, with the addition of a larger diameter flex joint, this is a real high flowing downpipe that will reduce backpressure and relieve stress off the