The Vortech supercharging system for the 2003 GM Full Size Truck and SUV with the GM VORTEC 5.3L engine will impress you with the obvious attention to detail and fully integrated appearance. Increase your truck's 5.3L GM VORTEC engine's horsepower from 275 to 352 and torque from 290 lb./ft. to 377 lb./ft.*

Quality Features:

• Vortech gear driven supercharger with SQ technology provides nearly silent operation and unmatched reliability

• Technologically advanced, high-efficiency impeller and housing design developed in Vortech's supercharger test cell

• Fuel management upgrade includes high-capacity fuel injectors(03-04), high-flow fuel pump(02), FMU(02) and a hand-held ECM re-programmer(all)

• Oil feed and oil drain assemblies deliver the best possible lubrication and cooling for the supercharger, even under sustained boost conditions

• Inlet and discharge duct connections utilize heat resistant silicon sleeves and premium quality stainless steel clamps

• OEM-type cast aluminum mounting bracket for "factory installed" appearance and rigidity

• High-flow bypass valve provides surge-free compressor operation

Attention Export Customers: US Spec Vehicles Only

Complete Vortech supercharger systems are intended for use on vehicles made and operated in the USA. Fitment of these systems to vehicles not made and operated in the USA may require custom tuning.

Warranty Information

3-Year Supercharger Limited Warranty

Included with engine-oil-fed superchargers if purchased as part of a complete street-legal system. Not available with tuner kits. Available with V-3 systems for an additional $50.00. More information (PDF).

3-Year/36,000-Mile Powertrain Limited Warranty

Available with complete street legal systems sold and installed by a Vortech Top-Tier Installer. Not available with tuner kits. More information.

Please Note

*Supercharged horsepower and torque data shown is a calculated estimate based on percentage increases from actual rear wheel hp/tq measurements.

Vortech does not offer programming for alternatively fueled vehicles (trucks with a Z in the 8th digit of the VIN).