Band Clamps with Magnaflow cat-back

those clamps came with my catback. i had some leaks from the muffler/tailpipe, so i tried to tighten em the best i could. tailpipes started hitting the frame. tried to fix em over and over again, they only get so tight. didnt work, they were garbage. got me some u style ones from advance auto and now no moving tailpipes or leaks. gonna get some more to put on my xpipe.