For anyone else installing with the provided clamps, you definitely need to tighten those things more than you'd expect to keep everything tight, espcially where the resonator section attached to the beginning of the tailpipe near the gas tank. This is a critical connection that supports the 90 degree bend and keeps it from hanging down.
I have to agree there. Also, even tho it won't leak with the u-bolts the pipe can still twist. Mine did that the other day. I had it realigned at a shop and tack welded. I will have it fully welded when I get the new y-pipe in there.