I am thinking of getting an exhaust soon. I am for sure getting DC headers (4-2-1), but I wanted to know if I could get a custom exhaust cheaper than a DC exhaust which runs close to $450. I guy I work with said when he did his exhaust on his jeep, he had a muffler shop customize it with mandrel bent tubing and just put a Flowmaster muffler on it. They only charged him $150. Can I just buy a DC muffler, and then have the tubing done seperately in 2.25 piping? Do they even sell DC mufflers separately?