I have the HP's on my '07 and they are great. I had the D-Specs on my '05 and they were fine. If you racing your STANG then get the D-Specs.
Fred:flag:
The Yellow top is a Deep Cycle battery with 750 cold cranking amps and have a reserve capacity of 120 minutes vs 720 cold cranking amps and 110 minutes.
HTH
Fred :nice: