2007-2014 GM 5.3L Truck/SUV 5.3L Whipple Supercharger Kit

The Whipple WK-1111 Supercharger Kit is designed for 2007-2013 GM 5.3L truck applications and 2007-2014 GM 5.3L SUV applications, delivering substantial power and torque in a proven bolt-on package. Built around the Whipple W140AX 2.3L twin-screw supercharger, this system provides instant boost, strong low-end torque, and excellent power throughout the RPM range.

With gains of up to 225 horsepower and 215 lb-ft over stock on 91-octane fuel, the WK-1111 transforms the 5.3L platform into a much stronger street, towing, and performance combination. The positive-displacement Whipple design delivers immediate throttle response, while the oversized air-to-water intercooler and heat exchanger help maintain lower air charge temperatures for more consistent performance.

Each system is engineered as a complete, integrated upgrade and includes the Whipple 2.3L supercharger, intake manifold, high-flow fuel injectors, HP Tuners RTD flash tool, and the necessary hoses, wiring, and hardware for installation. The result is a clean, well-packaged system that works well on stock engines while still offering the performance Whipple is known for.

Key Features:

• Whipple W140AX 2.3L twin-screw supercharger
• Gain up to 225 HP and 215 lb-ft over stock
• Up to 99% volumetric efficiency
• Massive air-to-water bar-and-plate intercooler
• Oversized heat exchanger for improved cooling capacity
• Instant boost and strong low-end torque
• Flat torque curve for excellent towing and drivability
• HP Tuners RTD flash tool included
• High-flow fuel injectors included
• OEM quick-connect fittings for easier installation
• No internal engine modifications required
• CARB EO D-231-48

Whipple Exclusive Features:

• W140AX Whipple twin-screw supercharger that outflows smaller roots-style and twin-screw designs
• Proven 3x5 rotor profile for excellent airflow and power under the curve
• Top-mount design for improved thermal efficiency and packaging
• Discharge-down design for reduced pressure loss and strong power at lower boost levels
• Large integrated bypass system for strong drivability and reduced parasitic loss during cruising
• Factory-style fit and finish with a clean completed installation

Fitment:

• 2007-2013 Chevrolet Silverado 1500 5.3L
• 2007-2013 GMC Sierra 1500 5.3L
• 2007-2014 Chevrolet Tahoe 5.3L
• 2007-2014 Chevrolet Suburban 1500 5.3L
• 2007-2014 Chevrolet Avalanche 5.3L
• 2007-2014 GMC Yukon 5.3L
• 2007-2014 GMC Yukon XL 1500 5.3L

VIN Engine Identifier Reference:

VIN 8th digit: B, M, or 3 = 5.3L gasoline
VIN 8th digit: Z, T, O, or J = 5.3L flex-fuel

50-State Legal: CARB EO D-231-48