Change in sound?
Does the sound change from the stock tips?
E90///M3 : ESS ECU & Shift tuned ~ ESS catback w/ ACM test pipes ~ LUX AE ~ Eibach Prokit (thinking of picking up Ohlins)~ 19" TE37's
Scion xB: modded up and is the DD
Ford Flex Ecoboost: ECU Tuned w/ intake (wifes)