You have to have a few screws loose in your head to drive the 505 horsepower 2014 Camaro Z/28 and think “this is nice, but I wish it was a little bit faster.” Hennessey Performance Engineering is aware that those people are out there though, and has since been working on an upgrade kit for the track-focused Camaro’s 7.0-liter LS7 V8 ever since.
Hennesey’s upgrade kit includes CNC ported cylinder heads, an HPE camshaft, long-tube stainless steel headers and an ECU remap. On the Dynojet dyno, these upgrades bump output to 552 horsepower and 474 lb-ft of torque directly to the rear wheels. That means the car is producing 636 horsepower and 545 lb-ft of torque at the flywheel.
Between the sticky Pirelli Trofeo R tires, working aerodynamics, dynamic suspension spool valve damping system and reduced weight, the Z/28 is the most capable Camaro ever made. We’re sure its race-ready technology will handle the extra horsepower just fine, and it should help the still hefty 3,837 lb pony car down the straights at the racetrack. Check out the video of it on the dyno below and head over to HPE’s website for more info in their HPE600 kit for the Z/28.