Code XGT1 is for the 00 SVT.

If you have a 00 SVT this code will work for you. If you don't, the chip will need to be re-burned.

For Ref:
All 00 SVT PCM's require a jumper to be added in order for the chip to work.

Superchip's latest XGT1 revision has a 7400rpm redline

2000 SVT #674 - Check it out!

Whoever coined the phrase; "If it ain't broke; don't fix it" ~ Just doesn't get it...