You can do one of two things:
1) Send a PM to Andrew (TBird). He's a really nice guy and I believe he's made them for a few guys/girls on here. Can't remember how much he charges, but they're worth it. They also look fantastic right above the "slasher stripes" XF owners put on the rocker panels. (For more on those, search "Slasher stripes" and you should be able to find plenty of info and pics). Andrew is a pretty busy guy though, so he might not get back to you for awhile.
2) Go to a local graphics shop and have them custom-make a decal that replicates the Crossfire font.