He was busting your arse about the 99-04 Mach 1 comment! They only made the MACH 1 in 03 and 04! Below is one link that sells the MACH 1 chin splitter. You can find it on EBAY too. About the best price you might find will be around $99.00
U should just buy it online from one of the many vendors out there. The biggest reason is its new, not messed up, and you'd get a better deal on shipping.
I've heard complaints from people who have ordered a new chin spoiler, they said that when they got them in the mail they were all bent up and damaged?? Idk who the vendor was, but I have read that on a few other forums. Has anyone else that ordered a new one had this problem? I've been thinking about ordering a new one, because mines all chewed up. But thats kind of why I have been holding back.