need 03 cobra tune with 2.8 pulley

[mrmotorsports]

i have two questions,,

i have unlimited ls1 tunes ,, and now i have a 03 cobra i wanna tune, do i just buy credits and then i can tune that one? or do i need diff software..

second question is,

does anyone have a tune for a 03 cobra.. im putting a 2.8 pulley, steeda cold air kit and catback otherwise everything else is stock.. does anyone have a tune i can put in it.. thanks..

[Screamn03]

There's no EEC-IV support from HPTuners.