I'm sure that you will be happy with the K & N. The one in my P914 works fine (and no ecu to worry about). Curious as to any performance gains- beware of the fresh oil change/car wash phenomenon where the owner senses his car is running better & stronger because he sunk some $$$ into his car. I swear my cars run better when they are cleaned and detailed, but I know it's just a subjective (and silly) case of wishful thinking. If you really notice a performance improvement, I'd definitely consider paying what you spent on your K & N filter.