Using a 6.2-liter supercharged LSA found in the Cadillac CTS-V as a base, Hennessey Performance is offering four new upgrades for the Chevrolet Camaro ZL1. The four versions are the HPE650, which has 658 bhp at 6,200 rpm, the HPE700 with 707 bhp at 6,300 rpm, the HPE800 with 800 bhp at 6,200 rpm, and the HPE1000, which pumps 1,021 bhp at 6,400 rpm. The HPE1000 twin turbo upgrade uses a 427-cubic-inch LSX Engine, forged pistons, rods and cranks, an upgraded fuel system, high-flow cylinder heads, ball bearing turbos, an air-to-air intercooler, and high-flow K&N air filter. That's just a few features. Hit the link for a complete run down.