With the amount of gap where all the pipes go together, there is going to be some leakage at each joint. The rear section of my S pipe is not perfectly round and had to go into the rear section 90 degrees off from where it should be. When twisted up to where it needs to be it has a pretty tight fit - thinking that joint might actually have the least leakage of them all once the exhaust is installed...eager enough about this exhaust that I got it before my FiST arrived...
Yeah noticed that also mine fit perfect no leaks other then the dual tips right on top where you tighten it up
But love it and every one else does to