Hey there, I just put a new muffler on my buggy, after installing it, I reach my hand down there while running and it feels like exhaust is blowing by the new gasket and studs I installed. Is this imagined or apparent? And how do you know if you've tightened the studs down enough to seal the muffler to the manifold? Here's a picture of the gasket and studs I used...and thanks.