Hennessey Performance
About Hennessey Performance
Hennessey Performance Engineering is a world-renowned, Texas-based automotive company specializing in high-performance vehicle upgrades, bespoke supercars, and extreme performance packages for cars, trucks, and SUVs. Founded by John Hennessey in 1991, the company has become synonymous with American engineering excellence, delivering supercharged, turbocharged, and custom-built vehicles that push the limits of speed, power, and handling. From the record-breaking Venom GT and Venom F5 hypercars to performance upgrades for today’s most iconic performance vehicles, Hennessey combines precision engineering with innovative design to create unique, high-powered driving experiences. With a commitment to quality, safety, and performance, Hennessey Performance is the trusted choice for enthusiasts seeking custom automotive solutions, one-of-a-kind builds, and elite performance modifications that stand out on both the road and at the track.
The Hennessey GOLIATH® 700 Sierra features a twin-screw supercharger with air-to-water intercooling and Hennessey engine management calibration. Upgrades to the 6.2-liter V8 powertrain boost output by 66% – 700 bhp at 5,500 rpm vs stock 420 bhp – while torque climbs to 611 lb-ft at 4,200 rpm (stock 460 lb-ft).
Supercharged GMC Yukon
The ultimate upgrade for the 2026 GMC Yukon include a twin supercharger system, a stainless steel catback exhaust system, and 24-in Hennessey Performance Wheels. Hennessey® Performance harnesses the 6.2-liter V8 engine to deliver high-performance thrills to the capable SUV.
Hennessey Performance offers an array of upgrades, as well as parts that are dyno proven, and track tested for a number of performance cars and trucks. They are also the only tuner in North America operating their own test track.
If you are not able to shop at our Hennessey Performance Chevrolet dealership, just contact our dealership and our specialists will help you with the entire vehicle transaction from finance to delivery.