I recently installed the K&N CAI with flowmaster dual exhaust, 9" lift and 37" tires. My internal computer is wondering what the hell I did, as of when it was first driven the check engine light came on.

Obviously I have to have the dealer recalibrate for the bigger tires, but what is the recomendation for a programmer like hypertech vs and internal performance chip.

Any insight would be greatly appreciated.

Thanks

 

I bought the Superchips programmer and it fixed the speedomiter and gave it a little boost. I am very happy with it.