i am looking into buying an exhaust pipe for my 87' 250x. out of white bros., fmf megamax, and a supertrapp which one gives the biggest gain in power?

flyboy

I have been researching the same thing and believe it or not all those who should know in my area say that the cobra jet is the best bang for your buck. I have one ordered should be here in about a week. Looks good and sounds awesome. But maybe it is just me.

White bros.and you dont have to rejet in most cases!