I ended up with a FMF Factory slip on for a YFZ450 was meant to b4 a YZF. A quick look thought mmm, so with some cutting a fitting it fitted up real nice and gives slightly less down low with a healthy boost up top. The collectorid section was cut off just behind the weld and about 3 inches taken off the FMF tapered section and then one more cut and twist and bingo. Will post some pics some day.
Cheers Dan
Cheers Dan
