I was scheduled to have my new cats and x pipe and muffler installed this week by a local garage, but, i found out today that they don't weld. They wanted to use clamps. I was thinking maybe that isn't the best idea because the x pipe is gonna be so close to the cats, i thought it may not be stable. Anyone have any opinion on whether it needs to be welded or not? I can see clamping the muffler because if i don't like it, i can just take it off and clamp on a new one. I think i'm definately gonna do that.

 

I prefer welds. No worries with them and they look so much better.

 

clamps are fine just make sure that the outer slip joint is slit on 2 sides allowing the joint to clamp properly. Welds are better but also kinda perminate.