Callaway offers two new engine upgrades for GM trucks and SUVs. The two new kits – SC520 and SC602 – add a supercharger, exclusive engine management calibration and more to boost the power of the automaker’s V8 engines.

Callaway designed the kits for GM’s 5.3-liter and 6.2-liter V8 engines. This increases the output of the smaller engine to 520 horsepower (382 kilowatts) while the larger block produces 602 hp (442 kW). That’s up to 182 more horsepower over the original production 6.2-liter engine, and the upgrades meet emissions standards in all 50 states.

The tuner achieves the increased horsepower by adding an Eaton TVS compressor concealed within Callaway’s exclusive housing while utilizing its TripleCooled intercooler system. The kit also includes an upgraded intake and exhaust system to improve airflow through the engine. The quad-tip stainless steel exhaust also enhances engine sound.

Callaway offers the kit for the 2021 to 2022 Chevrolet Tahoe and Suburban, GMC Yukon and Cadillac Escalade. The kit also fits GMC XL and Cadillac ESV variants. The company will also offer the engine packs for the 2022 Chevrolet Silverado and GMC Sierra, including the off-road-oriented Silverado ZR2 and Sierra AT4X. Callaway also offers wheels and other optional equipment to enhance the vehicle’s styling.

GM trucks and SUVs that receive the Callaway kit will also receive Callaway badging, engine covers, anodized door sill inserts and authenticity documentation. Each kit comes with Callaway’s three-year, 36,000-mile limited warranty while offering an optional five-year, 60,000-mile powertrain service contract. Packages start at $24,995.

Callaway has been building vehicles for 45 years, starting in the 1980s with the addition of turbochargers to the Corvette. The tuner has been at the forefront of building and creating high-powered GM vehicles, including its trucks and SUVs. They’re more popular than ever, so it makes sense that tuners like Callaway want to help owners customize their vehicles.