Proof with good manifold/CATS that you can get good numbers. New manifold/CATS I bought off a guy that drove his car home new and took the manifolds off and put headers on. He said they had probably 20 miles or so on them. Looked like it. They looked brand new. This on a car with nearly 100k on the clock. But new oil and fresh gas and plugs are crucial. As well as no vacuum leaks and of course getting those CATS HOT. Usually drive around a while and drive it right on the rollers. The 2011 numbers were higher but just put in fresh gas and oil change. No tune up but should have. Even still it passed with no issues.
I hate that they can lower the numbers to try and get older cars off the road. Really getting to hate this state.
