If I had to do it all again I would have scrapped the mp215 kit for an intake and Cobb AP only because I didn't now it was going to be such a hassle to turn it back to stock and do custom tune. Also, when you decide you need more power than the mp215 kit and want a custom tune you might as well throw away the mtune because it's non transferable. I love the car but now that I've finished everything the way I like it, I'm itching for some more power.