whats the bore of the standard mk2 172 exhaust?
H Henry Jan 15, 2009 #2 the back box pipe is 54mm O/D although can't remember if the system sleeves over or in (probably over)
the back box pipe is 54mm O/D although can't remember if the system sleeves over or in (probably over)
allanmcm Iceberge cup,mito tb Jan 15, 2009 #3 na not the back box pipe, the pipe say from the cat to the back box