Today I went and got my emissions testing done, and passed! The PO told me it had a dummy O2 so it shouldn't be a problem. They threw in a free $15 car wash too... Now today I put a big K&N cone filter on the TB so I could hear the blower, I left the IAT tucked up out of harms way. I did a couple WOT pulls and the wideband is now showing 12.7-12.9 AFR when yesterday it was 11.7-11.9, and the day before consistent 12.1. Are fluctuations like this normal? Could it have to do with the removal of the stock air box?
Another question is about the exhaust. The car has sd headers, catless 3" down pipe, and a high flow 3" cat, then the stock single cat-back. I have heard that this cat back can be a restriction with the regals because it is single. Regardless I will be changing the set up. I am thinking of putting either a 2.5 or 3" glasspack that is about 3 feet long where the resonator is, running 2.5 or 3" back from there to a Y pipe that split to either dual 2" or 2.25" tailpipes. I am not sure how loud and or ****ty this setup would be, but I will probably be finding out! And my final thing I am wondering is if replacing the cat-back exhaust would have an effect on the tune the car currently has? ... Still very happy with my purchase. IMO I got a great steal on a good car!
