im looking to get an exhaust system for my mustang, but im not entirely sure how to go about it. i want the full system, headers down to the tips. i was looking on americanmuscle.com for it, and when i clicked on the headers, the headers i picked were BBK long pipes, chrome i think, and it said the best mid pipe was a shorty x pipe. but i had already picked a Flowmaster catback. i picked an x pipe and it was a kooks shorty x pipe. im a newbie when it comes to the right parts to install, but no how to do it. what should i get, thats not a lot of money?