autoevolution 17 Mar 2021, 16:42 UTC · by Despite the unhackable engine control unit, it’s easy to squeeze out more power from the LT2 small-block V8 of the Corvette. Bolt-on upgrades worthy of taking into consideration include stainless-steel headers, a cat-back exhaust, high-flow cats, cold-air intake, and a throttle body spacer. 8 photos More power is wonderful in this application, but owners shouldn’t ignore the rear axles and transmission either. Cicio Performance is much obliged to upgrade the Corvette’s axles with 1,500-horsepower units, and the transaxle can easily be modified with Raybestos Powertrain GPZ clutches. Ray who? Raybestos Powertrain is the company that helped Extreme Turbo Systems break into the 9-second range with 1,021 horsepower on tap, which is a lot by all accounts. Tremec says the eight-speed DCT can take up to 590 pound-feet (800 Nm) completely stock, which is why you need aftermarket friction clutches to harness this level of suck-squeeze-bang-blow.