F FORZDA 1 Member : `07 Speed6 Sport Jul 11, 2010 #2 BlackMS6BTO said: what size is our stock exhaust on the MS6? Click to expand... The OD is 2 3/8" before the "Y" and 1 7/8" after... The ID runs ~1/8" less, so it is 2.25" before and 1.75" after...
BlackMS6BTO said: what size is our stock exhaust on the MS6? Click to expand... The OD is 2 3/8" before the "Y" and 1 7/8" after... The ID runs ~1/8" less, so it is 2.25" before and 1.75" after...