I've tried all the adapters to mount the muffler to the exhaust pipe, but none fit properly. I ended up with a 2 3/4 x 2 3/4" connector with 2 3/4" terminals. I wanted a 2 1/2 "OD x 2" OD connector and they don't make it. Revain sells a universal plug but I didn't buy it and I'm not sure if it would be better or not. The exhaust pipe is leaking, the clamps are also getting weaker. I'd rather go to Midas.