Description Videos Reviews NM exhaust systems are constructed from 100% aerospace quality T304 stainless steel – inside and out. Large diameter sized tubing and low restriction stainless steel mufflers are carefully designed to reduce weight and meet State noise restriction standards. Polished muffler and tips, CNC mandrel bends are standard on every NM exhaust system. 10~14 HP gain. This system starts right after the downpipe at the factory v-band clamp. Complete bolt-on system without any cutting. The system features 76mm (3inch) tubing with dual 100mm (4") polished tips. FITS NORTH AMERICAN MODELS ONLY! Note: Front-wheel drive models require minor heat shield tweaking. Note: For off-road or competition use only. NM Engineering F60 Countryman & F54 Clubman - S/JCW Exhaust System NM Engineering Downpipe-Back Exhaust System. • Full T304 stain... 1 Review 5 Awesome system Posted by DJ-Bruce Odyssey on 14th Aug 2023 This kit really brought my car to life. Top quality, fits perfectly, looks fantastic on my mini, and best part is the sound quiet when cruising and highway then a absolute deep rich beast when in sport mode. The up shifts sound amazing to the point that I giggle as she shifts and a ear to ear smile as she lets out little pops on down shifts. I highly recommend this system and Detroit Tuned for steering me in the right direction with my mini. Fantastic folks to deal with!