For F30 and F31 chassis with the B58 engine: this AC Schnitzer dual sports exhaust replaces the standard rear section only. It’s not a full system, not a decat, and won’t turn your daily driver into a track day weapon - but it does sharpen throttle response slightly, add a deeper tone under load, and give clean, balanced 90mm black ceramic-coated tips.
Fits: F30 saloon, F31 touring, all 340i B58 variants including xDrive and models with electric towbar
Not for: N54/N55 335i, M3 (F80), or any car without the B58 - this isn’t a generic ‘BMW 3 Series’ part
What you get: two 90mm black ceramic-coated stainless steel tailpipes, mounting hardware, and dark grey rear skirt insert where required
Search terms this answers: F30 B58 sport exhaust, F31 340i dual exit, BMW 340i fast road exhaust, B58 rear muffler delete alternative, show car exhaust F30, AC Schnitzer 181121
