Originally Posted by 95gainfla
there is no such thing as 'needing' backpressure, despite what people tell you.
Oh really? Can I run without headers too?
Despite what people will tell you, you do need backpressure, but I don't think thats your problem. But put the muffler on it anyway. I don't wanna hear any more sickly sounding 4 cyls than I have too.