Hook up your SCT to your computer or laptop.
It should install drivers and bring you to their site for the latest software upgrades.
If it does not go to this part of there site that will tell you the directions for installing the tune on your SCT and ask for you to
update.
http://www.sctflash.com/support/inde...cleid=25&nav=0
Here is the install manual too.
.
http://www.sctflash.com/PDF/X3_SF3_User_Manual_01.pdf
Also Ted is great at walking you through this too as said above