I only have the powerflex rear motor mount bushings and a k&n drop in filter, As far as I know the dealer is only mod friendly but that's with the ford racing stuff. Who ever told you about a tune must be thinking about the FoST because ford racing has one for the car and it's overpriced in my opinion, but with that tune you keep the warranty in tact. I Also want the cobb ap as soon as I get $500 for one.