Im ganna need a new H-pipe and rather than paying 400 dollars for something i can do for free im ganna buy an off-road one and some cats. The question is has anybody done this and is a 13" cat too long? Also if u have how much did you cut out? im ganna do this on a short h-pipe with longtubes and thats why i ask, wondering if it will work

 

i just cut all the cats and replaced two of them with high flow cats called cat co. great sound and little more gitty up