BMW f40 118i in for dual exhaust conversion including dual exit diffuser supply & fit, backbox delete and 4” tips. Originally it had one exhaust tip on the left side and it sounded like a hoover. Now it looks totally different with new gloss black diffuser and exhaust on both side with fat 4” tips. And sound wise; it sounds just perfect not excessively loud but loud enough 👌🏼👌🏼. Owner was very happy with the result We have dual exit diffusers in stock in for some vag and most bmw models incl