Orlando Cars and Cafe - Watch and Listen to this highly modified Mazda RX7 take off. Originally was filming another car but heard what sounded like gun shots. Turn around and see this 600+whp RX7 just backfiring like crazy. Watch and listen as he gets absolutely no traction in first gear and then just rockets off. The car was putting down 600rwhp @16PSI of boost with the potential to put down 800rwhp at 27PSI on race gas.