CHunkFunky, they might have sent you the wrong pipe, I know Excessive Motorsports is famous for doing that. Even when it's in the right box with the right instructions. Go figure.
You should always perform exhaust mods on a drive on lift or with the suspension under a normal load that is level, exhaust is cranky when installed any other way and tends to produce leaks and loose bolts quick. Good luck
And yes stay away from the cheap stuff anyway, like flowtech, I tried them twice giving them the benifit of the doubt and was let down both times. You will get what you pay for.
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