Your car+5000 probably would get ya close to an 03 cobra :shrug: Then ya have the resale, stronger engine/trans, and a higher upper limit on the cars ability.
I traded my 02 GT when I was going to S/C it Figured 14.5K(GT Trade)+5000(S/C)+1000 MISC Upgrades=20.5K and it would still be a GT...