Ok, so i'm getting race headers and an ORY. What will the consequencces be of not using O2 sims, cause I don't really wanna spend $100 on them, and I don't have the money to get them tuned out yet either. Will it just keep the SES light on? That won't bother me, cause mine is already on.

 

delet them and take the car to the nearst tuner and delet the o2 back sensor ,other wise you will have PCM problem because the computer will read o2 sensor failuer and the performance of the car will go down.

 

Don't install the LT unless you can do it right. If the car is going to be registered and driven on the public roads, by federal law you need the cats.

As for the rear rear o2's, either tune 'em out or simms. If you cant afford either of the right now, wait until you can.

 

Ive have read on here there are no problems and unless mr hawk reports you to the "federal law" dont worry about it unless your state does emissions tests or if ur an environmentalist. Ive ran my race hearders for a year now, two different sets coated and stainless. i have no sims yet becasue i need a tune. I had nothing but gains obviously because of the free flowing headers. I have no cats obviously and yes power is left on the table because the pcm richens the fuel a bit because of the increased flow. your car will be fine as long as you plan on fixing it in the future.