You might need to get a new exhaust clamp. Try checking to make sure the two pieces are slid together completely, that could also be the problem. I'm pretty sure most ppl have to get a different clamp though for this problem.
thanks for the quick reply. yeah all it has is like a toggle bolt as a clamp. I tightened them, but that didnt seem to work. They make different clamps? I will have to look into that. Any suggestions?