I have a 2002 Mustang Gt and wanted to build an upgrade to hp database. So I found a brand new Hyertec Hyperpack for $399 and couldn't pass it up. My problem is that I have no idea what the curb weight of a stock GT is. You need it so the hyperpack can calculate your hp. You can usually find it on the pillar on the drivers side or in the owners manual, but not in mine. There isn't a dragstrip very close by to get an exact weight but if I had the stock gt coupe weight I could estimate it to get in the ballpark.