1) What sound level do you prefer from a performance exhaust system?
PICK ONE:
Noticeably louder than stock
2) What tip finish/style would you want in a performance exhaust system?
PICK ONE:
Polished or Chrome
3) What material do you want when buying a performance exhaust system?
PICK ONE:
Higher cost 304 stainless steel
4) What’s most important when looking to upgrade a stock exhaust system?
RANK FROM MOST TO LEAST IMPORTANT:
System longevity
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435i M-Sport | Pure Stage 2 Turbo | MHD Tune | XHP Stage 3 | Wagner Comp Evo 2 | MPE | Evolution Racewerks CP/DP/TIC | M-LSD | XDI-35 |
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