i just ordered an exhaust system
 

okay i ordered an N1 exhaust system im going back for the headers later the only reason i didnt without headers is two reasons one reason is i got the exhaust super cheap i gave $90.00 for it and the second is because im going to get a aftermarket radiator and i can get it with headers and an intake for like $170.00 so what my question is what kind of hp/tq am i looking at gaining its saying 20hp but i dont see it making that threw it (ebay special btw lol)

I'm saying a loss in mid range torque and maybe a whopping one or two hp up near redline at wide-open-throttle.

if your exhaust isnt restricting, you might be able to get 5+ but you will never notice it, except for the sound ofcourse

I agree with the others, not going to make much of a performance difference.

yeah didn't think so lol and i mean i have owned a drag/street bike so i knew i wasn't gonna fill the hp/tq i was just curious