OB_Squid Vicious
Registered
Sportrider recently did a pipe shoot out and the M4 was the loudest tested (over 104 decibels). It also made decent H.P. gains. The test was performed on a GSXR750 I believe. Anyone here have, or know someone who has the M4 system? If so, is it decent? My primary concerns are sound(loudness/meanness), appearance, h.p. gains, and cost(in that order). Any help would be great?