Texas-based tuner Hennessey has begun production of the VelociRaptor 600. The truck is based on the Ford F-150 Raptor and features a host of engine tweaks to develop a sizable bump in performance over the stock vehicle.

In the VelociRaptor 600, power from the 3.5 liter V6 engine is up from 450 hp (456 PS / 340 kW) to 558 hp (566 PS / 422 kW). Torque sees a sizeable jump, too, with Hennesey bumping the stock Raptor’s output by a third, from 510 lb-ft (691 Nm) to 672 lb-ft (911 Nm).

The power gains are thanks to a number of tweaks under the hood, including enhanced air induction, a high-capacity intercooler with a blow-off valve, and an upgraded engine management system. On the open road, the modifications translate to a 0–60 mph (0–96 km/h) time of just 4.2 seconds, with a quarter-mile hit in just 12.9 seconds. With figures like that, it’s no surprise that Hennessey is offering a brake upgrade, with six-piston Brembos available.

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Hennessey ran the two side-by-side in a couple of drag races to demonstrate just how much faster the VelociRaptor compared to a stock Ford Raptor. Unsurprisingly, both standing and rolling starts saw the Velociraptor demolish the truck it’s based on.

Hennessey also offers an off-road upgrade kit. The package adds front and rear bumpers which accommodate the standard sensors found on the F-150, but also adds a lightbar upfront. Also included with the off-road upgrade are 20-inch wheels wrapped in 37-inch tires that combine off-road ability with highway comfort. There’s also a three-inch lift and suspension leveling kit thrown in for that perfect stance and increased off-road capability.

Hennessy’s work is covered by a 3-year/36,000-mile (~58,000 km) warranty, although only 250 units of the 2022 model will be on offer, with the American tuner keen to ensure exclusivity. Installed, the under-hood upgrades are $19,950, while the off-road package will stretch you another $17,900.

The truck will make its public debut on January 22, at the Barrett Jackson collectible car auction in Scottsdale, Arizona, with deliveries starting straight after.