T TNUTT Member Jul 18, 2002 45 0 Feb 12, 2003 #1 I WAS JUST WONDERING WITH THE 133 OR 144 BORE IS THE PERFORMANCE PIPE NOT PERFORMING AS WELL AS IT WOULD FOR A 125. MY QUESTION IS IF A PIPE IS DESIGNED FOR A CERTAIN BORE AND IF YOU CHANGE THAT, DOES THE PIPE PERFORMANCE CHANGE?
I WAS JUST WONDERING WITH THE 133 OR 144 BORE IS THE PERFORMANCE PIPE NOT PERFORMING AS WELL AS IT WOULD FOR A 125. MY QUESTION IS IF A PIPE IS DESIGNED FOR A CERTAIN BORE AND IF YOU CHANGE THAT, DOES THE PIPE PERFORMANCE CHANGE?
marcusgunby LIFETIME SPONSOR Jan 9, 2000 6,450 2 Feb 13, 2003 #2 Eric recommends FMF fatty for the big bores as it suits them best.