I installed the k&n black hawk cai on my 13 gt and it was running real rough. It smelled of gasoline and sort of sounded like it had a cam. After about 10 minutes it started stalling when I would start it up & made popping noises at the exhaust if I would try to drive it. does anybody know whats going on. My car already had the SR intake on it when I bought it but the filter was damaged so I just went ahead and bought the k&n for the looks. American muscle said this cai doesnt need a computer tune to work & I made sure everything was sealed properly after installation. Could it be because the maf sensor had some scratches on the metalic side?