blzn04fx4:
Not really. Call SCT (sctflash.com has contact info) and tell them what you need. You will have to send it in so it can be reset. Also, you will need a tune from them (unless you get 'Advantage' - highly recommended - to do you own tuning) for the Mach1. Bottom line: there is some cost for unlocking and providing a new 'canned' tune but it is pretty reasonable, imho.
The alternate thing to do is to contact a reputable tuner in your area and have him set you up with a custom tune (to make the most of the mods done to the Mach1). Again, not a high cost for this since you already have the XCal.
HTH,
Chris