I will soon have to do emissions on my celica, as a result, I wanted to know your tips for passing. I live in snohomish county if that helps. I plan on putting 2.25 or 2.5 inch exhaust from the cat back for sure, but I am probably going to remove the cat in the proccess, because the current exhaust will fail horribly, it has holes/rust all over that makes it brittle. I dont want to buy a new cat if I can get a way with putting some "sure pass" ethonal in there.
Anyways, I only have to wait like 6 years to put strait pipes on, so skimping on the cat now for 3 more tests will save me the extra 250 for a new cat.