i wanna mount a magnaflow exhaust on my stock Si piping and wondering if anyone has mounted their own exhaust without welding how much do exhaust clamps cost and are do they hold the muffler pretty securely. even though this is for temporary before i mount my skunk2 exhaust

 

They're less than a buck a piece if I remember right, and yeah as long as you tighten the nuts well enough they hold very well.