nelson440
10-08-2006, 12:59 AM
well i am currently build an 05 450r for mx for next season. and i am looking for a descent exhaust system to run, i know rossier is a good pipe. but next year they are going to enforce sound restrictions so i want to find a pipe that produces really good horses but is around the 99 or 98 db range? anyone have any success putting the supertrapp discs on a rossier pipe? any suggestions would be awesome.