Hey guys just picked up my fmf q4 for my 07 450 and everything fits great exept for the stock clamp that you loosen/tighten to fit where the midpipe connects to the header cannot be adjusted tight enough to keep the pipe inplace as it would on the stock exhaust. Keep in mind i did not replace the header. What am i doing wrong because nowhere did i read that i would need a tighter adjusting clamp to connect the muffler midpipe to the header. Thanks!!