If you want the catback for sound go for it but if you want it for power its not the way to go. Too expensive and barely any noticeable power out of them. Everyone is telling me that the cat is what is robbing you of power and to go with a larger cat, more flowing. Im going with a CMD, downpipe, better cat and muffler. But it may trip a cel light though..... Also if you install the catback yourself be careful for exhaust leaks. MXP and Greddy are pretty nice but the most expensive