Need ideas of what might be wrong with my 3. Its a 2006, 2.3 liter 55,000 miles, short shifter, Mazdaspeed CAI, Borla exhaust, Pulstar plugs. Shortly after installing the Borla my car hesitated as if it was about to cut out and then the engine raced back up to about 2000 rpm for a few seconds. This has happened a couple of times but only when I first start the car. Once the car is warmed I no longer have that problem. I live in Florida and my car is kept in a garage. I have cleaned my air filter, checked the plugs, changed the oil, filled up with premium fuel and a fuel additive to clean the fuel system, installed Buddy Club Condensor but still the car acts up, any ideas what might be the cause? HELP!!!