You need to loosen the clamps at the mid pipe sleave clamps to the H or X as well as the muffler clamp and find the right combination on twist to get the tips centered...you need about a 1/4in clearance from the cutout.Rizzen said:Anyone with this sytem have the same problem? Its like the tips or something is vibrating on the rear fender placstic and creating a terible rattlling noise. Is there a fix for this.