Thread: Cat back replacment (How to remove)

Well I cut through the hex head on cat side, and it is for sure not a nut (no thread). On the resonator side I ground flush to backside of flange, and it must be threaded into resonator flange as the flange will not break loose.

I will keep grinding and cutting till it comes loose, just a very strange joint with no clearence holes in the flanges.

When done I guess I will have two holes in each flange.

I ground down flush with flange on both sides, and still do not see a hole. You can see the ring of the bolt on both flanges, but will not break. Guessing it is a pressed in stud on one side and threaded flange hole on other, but no way this could be.