2025 Chevrolet Tahoe & Suburban Supercharged to 625 HP by Hennessey
Customized 6.2-liter V-8 SUVs will become the first Hennessey vehicles available from authorized Chevrolet dealers…
Hennessey, the Texas-based hypercar manufacturer and high-performance vehicle creator, has announced a new 625-hp version of the 2025 Chevrolet Tahoe and Suburban SUVs. The H600 performance package features a host of mechanical and aesthetic enhancements, ranging from a new Magnuson supercharger, sport-touring exhaust and Brembo brakes to a lowered ride height and Hennessey wheels, according to a press release.
Hennessey says the pair of full-size SUVs are the first General Motors models available directly to customers through its authorized Chevrolet dealers around the United States. Operating just like any other new vehicle purchase, the new GM-Hennessey relationship will see all Hennessey products offered with comprehensive warranty cover and GM’s full range of finance products.
John Hennessey, company founder and CEO, said, “My family and I have owned countless Chevy Suburbans over the years—they’ve always been our go-to vehicles for their comfort, performance, and the space to haul kids, gear, and everything in between. That’s why we’re so excited about our 625-horsepower upgrade—it turns the Tahoe and Suburban into true driver’s SUVs that are an absolute blast behind the wheel, even when fully loaded.
“What makes this even more special is our new partnership with authorized GM dealers across the country, which makes it easier than ever for customers to access Hennessey performance directly through their local dealership—complete with financing options, dealer support, and the peace of mind of the full GM warranty.”
The H600 Performance Package Increases Power & Style
Hennessey’s upgrades to the 6.2-liter V-8 Tahoe and Suburban see the Texan team increase the power by more than 200 hp to 625 bhp at 5,500 rpm, while torque grows by more than a third to 633 pound-feet at 4,200 rpm. The company says the significant performance enhancements make the GM models among the most formidable SUVs on the market.
The mechanical enhancements of the H600 are paired with a range of visual enhancements. Sitting on 24-inch gloss black lightweight sport wheels, the GM SUVs are also lowered by 2.5 inches for a more distinctive and sportier stance, while Hennessey badging inside and out acknowledges the enhancements.
Hennessey upgrades are available on all Chevrolet Tahoe and Suburban models that offer the more powerful 6.2-liter naturally aspirated V-8. All models are paired with a 10-speed transmission and a suite of tech to enhance the drivability and safety of the vehicle, noted the release. Heavy-duty six-piston Brembo front brakes keep the power in check, while Firestone Firehawk Pursuit tires ensure optimal handling and grip.
