[tommy583]

I know 90% of the drone on my Circuit works exhaust is from leaks. The 2 bolt clamps up near the cats will leak if I don't tighten the hell out of them. The ones closer to the muffler leak even worse. I even bought new clamps and they still leak. I'm positive that the muffler pipe diameter is a touch less than the stock muffler due to thinner metal. No matter how far I shove the C pipe in or tighten the clamp it still leaks. So i'm just going to mod my stock muffler, buy new 2 bolt clamps and be done with it.