Hey thanks. We did the job last night, replace the cat, and installed a cat back.

the old cat was welded on, so we had to sawzall the pipe there off, and then grinder it down flat.

the spring kit just would NOT accomodate my after maket cat, so it is bolted on direct right now, after a couple of day, I'm going to get back under there, and install the "donut" thing, and the spring set, with some much longer stainless bolts.

I used high-temp RTV on all the flanges to suppliment the gaskets, and rtv on the bolts, which should prevent seizing, AND backing off.

I'd really like to see some pics of the joint between the cat and header... we just had to guess.

Thanks