Anyone with a BMW factory sport exhaust? I'm referring to one thats listed in the 3 series catalog. Is this exhaust louder or have a deeper tone than the ZHP exhaust? Would someone with any knowledge of this exhaust please comment.
A forum community dedicated to BMW owners and enthusiasts. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Bringing the BMW community together.