There is a slight price difference, but here is what we found! Doing a head to head test in the lanes, car one firebird with 1 remy g31 battery 2 sax 1200s wired @.5 each rising to 1.7ohms 3210w dropping to 10.8v. Car two was grand prix, with 3g31 batterys on the 2 aq 1200's, wired at .5 each...