Originally Posted by
Keith3311
That dyno was at the tuning shop, AFTER the tune. I wasn't 100% comfortable attempting to finish the tune myself after hearing horror stories about busted pistons. When I called Vortech they recommended this shop, so I called, they confirmed they could tune with my HP tuner and I went there. When the car was finished, the tech had installed a predator, used that instead of my HP and this is the end result. He stated that he had tuned another challenger with my setup using this tune, it was copied from a previous tune, according to him. That tune on the other car produced low 500s to the rear wheels, again, according to the tech.