the superchips is crap, its cool if your just looking for fuel mileage on a astock vehicle, but it sucks for making power. gtting it dyno-tuned is your best bet. the biggest improvement over the supechips will be the shifting especailly if you have a shift kit. i would say next you should get a shift kit and maybe do the rear end if your going to add more power. i did an eaton posi and 410s all around and i couldnt be happier.