Well written post by Gannett...pay close attention and think carefully. Mark, as you know we have identical cars and I am in the initial stages of the mods you are considering. While I love my new headers, the car is now throwing codes (CEL). The fix for this is a tune, so here we go! If I should need a warranty repair to the engine, after market headers, cats, and tune could jeapordize the factory warranty. Am now considering taking the headers off and returning to stock for this reason. IMO these cars come equipped from the factory with plenty of TQ and HP for street use. If you want to track the car that is another story...
