I have the performance tune in my 2003 GT. I just put on a SLP X pipe and LM1 catback. I also put on wider wheels. Do I need to get a custom tune for those mods or is it ok as it is. Also, if I ever need to take it for service to I need to reflash it back to stock?
I have the performance tune in my 2003 GT. I just put on a SLP X pipe and LM1 catback. I also put on wider wheels. Do I need to get a custom tune for those mods or is it ok as it is. Also, if I ever need to take it for service to I need to reflash it back to stock?
you do not need a custom tune for t he exhaust. you don't need to retune for the wheels unless they are taller than stock. just reset the computer after adding the new parts and the computer will basically tune itself.