Im 18 and ive had my xfire for a little over a year now, my friend whos got a charger has put an exhuast and a CAI + a chip and has made me realize i need to lock it up and get my *** in gear. Ofcourse the first thing thats going to need to go is the stock exhuast. ive done some research and know that the way to go is cat back and prefferable a maganflow. does anyone know a good place to obtain one from, also prefferably the cheapest way to do this. any suggestions are much appreciated!!