hey , just wondering what you guys think, im making a new exhaust for my xmoto r80 and i have an old muffler off a cr85, just wondering if ill loose any performance if i run a pipe like the original but where the muffler joins the new pipe will keep going, make a 45 degree bend and then go to the back of the bikes rear wheel and have this attached to it, like the black one below, thoughts?
