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      03-13-2013, 07:38 AM   #3
Stronghammer's Avatar

Drives: E92 M3
Join Date: May 2011
Location: south carolina

iTrader: (3)

There was a thread some time back on test pipes and sound. Some guy actually measured the sound of his exhaust before and after test pipes. The sound level went up some but not much. My personal impression is with test pipes the sound is a little louder and raspier under hard acceleration but not really different when just cruising around town. Good luck !
2011 E92 M3 MR July 11 ED Sept 11 PCD
Mods: ESS VT1, MS test pipes, 19 BBS CH-R, Eibach pro springs, Painted reflectors, carbon fiber grills, Painted side markers with dark tinted lenses, 30% tint, Arkym rear diffuser, Innotech axle back exhaust, Performance spoiler