I recently bought my car, and well it has no cat. Only a test pipe. The down pipe is an atr, and I beleive the entire exhaust to be as well. Where can I find a cat to be able to smog my car? It is an oval inner tube with a four bolt flange, with the other side being a slip over. I live in california, so any help would be appreciated.
You could try Random Technology, measure your test pipe to determine the length catalytic converter you need.
The cat you are looking for is available from Cottons Performance or Full Throttle Speed. Hope this helps!