Whipple Supercharger Kit Intercooled W140AX 2.3L (20072013 GM Truck / SUV 5.3L) WK-1111
Intercooled Twin-Screw Power Upgrade for 5.3L GM Trucks & SUVs
The Whipple W140AX 2.3L Intercooled Supercharger Kit is a complete, bolt-on forced-induction system engineered for 20072013 GM/GMC/Chevy 5.3L trucks and 20072014 GM SUVs. Designed to deliver massive real-world performance with factory-like drivability, this system produces 200+ horsepower gains on 91-octane fuel with just 78 psi of boost.
At the core of the system is Whipples proven W140AX 2.3-liter twin-screw supercharger, capable of reaching up to 99% volumetric efficiency. Paired with Whipples massive oversized air-to-water intercooler, this setup delivers exceptional charge-air cooling for consistent power whether youre daily driving, towing, or pushing the truck hard.
A unique intercooled bypass system minimizes parasitic loss during cruising to less than 1 horsepower, improving fuel economy while still delivering instant boost on demand. This 100% complete system bolts onto stock engines but has the airflow capacity to support future modifications.
Performance Highlights
- Gain 200+ HP on 91-octane fuel
- W140AX 2.3L Whipple twin-screw supercharger
- Massive air-to-water intercooler for superior cooling
- Up to 99% volumetric efficiency
- Intercooled bypass system for excellent drivability
- Instant throttle response with a huge torque increase
- Designed for stock engines with room for modified builds
- Complete bolt-on systeminstall and drive
Quick Specs
- Part Number: WK-1111
- Supercharger: Whipple W140AX (2.3L)
- Engine: GM 5.3L V8
- Boost Level: 78 psi
- Power Gains: 200+ HP
- Fuel Requirement: 91 octane
- Intercooler: Oversized air-to-water system
- Tuning: SCT Flash Programmer included
- Installation: Complete bolt-on kit
FAQs
Is this supercharger kit suitable for daily driving and towing?
Yes. The intercooled bypass system and Whipple calibration provide smooth daily drivability, strong low-end torque, and improved towing performance without sacrificing reliability.
Can this kit support additional engine modifications?
Absolutely. The W140AX 2.3L platform offers ample airflow capacity to support future upgrades beyond a stock engine configuration.
Fitment
- 2007 GM Truck 5.3L
- 2008 GM Truck 5.3L
- 2009 GM Truck 5.3L
- 2010 GM Truck 5.3L
- 2011 GM Truck 5.3L
- 2012 GM Truck 5.3L
- 2013 GM Truck 5.3L
- 2007 GM SUV 5.3L
- 2008 GM SUV 5.3L
- 2009 GM SUV 5.3L
- 2010 GM SUV 5.3L
- 2011 GM SUV 5.3L
- 2012 GM SUV 5.3L
- 2013 GM SUV 5.3L
- 2014 GM SUV 5.3L
California Proposition 65 Warning
WARNING: Cancer and Reproductive Harm.
For more information, visit www.p65warnings.ca.gov.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for Whipple supercharger systems and GM truck performance upgrades. Need help confirming compatibility or planning supporting mods? Call 1-855-827-7223 or email sales@beefcakeracing.com.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

