I have a 1991 GS, and I have had my entire exhaust rerouted with larger piping and my cat completely taken out. Would it be better if i got a hi-flow cat put in, or just leave it with nothing?
no cat is best for hp…just don’t get caught…
its legal
actually i did it because on a 91 in Canada its legal for the cat to be removed, dont know about U.S. though
its only legal in a handful of states in the US.