[stacy's stang]

Ok, I want to get my husband a programmer for his '04 mach 1 for christmas. So I need your help on where to get this and which one is the best. He only has a few mods so I don't know how customized I have to get with the choice. He put in a new shift kit and magnapak catbacks. We've tried to minimize his changes because of the warranty, which is why I want the programmer vs the chip. Any suggestions?