I recently installed the Magnaflow SI/SO catback on my '07 FX2 and now my dad wants one for his '03 FX4. I managed to catch mine new from an Ebay store for less than $400 but now I can't remember the sellers name and cannot find anything less than about $490 for the kit for the '03. Can anyone help me find one for cheaper? Dads '03 still looks like new and only has about 45K miles on it so I think it's worthy of a decent exhaust, Heres a few pics of it after a detail job by me a few months ago:

 

just buy the muffler and tips you want and have a exhaust shop bend you custom pipes it'll probably run you around $350 depending on where you live...