Whipple Intercooled Supercharger Kit W140AX 2.3L (20142018 GM 2500HD 6.0L) WK-1114
Overview
The Whipple W140AX 2.3L Intercooled Supercharger System is a complete, bolt-on performance solution designed specifically for 20142018 GM 2500HD trucks equipped with the 6.0L engine. Engineered for durability, towing confidence, and real-world drivability, this system delivers a massive 140+ horsepower gain on 91-octane fuel while maintaining factory-like manners.
Running a conservative 78 PSI of boost, the W140AX twin-screw supercharger achieves up to 99% volumetric efficiency, producing more power per pound of boost than competing positive displacement systems. The result is instant throttle response, strong low-end torque, and effortless accelerationeven under heavy load.
Performance Highlights
- 140+ horsepower gain on 91-octane fuel
- W140AX 2.3L Whipple twin-screw supercharger
- Runs only 78 PSI for reliability and longevity
- Massive air-to-water intercooler for consistent charge temps
- Industry-leading volumetric efficiency up to 99%
- Intercooled bypass system reduces parasitic loss during cruising
- Excellent throttle response with strong low-end torque
Complete, Turnkey System
Unlike pieced-together kits, the Whipple WK-1114 system is 100% complete and engineered to work seamlessly with factory components. The kit includes the supercharger, high-flow aluminum intake manifold, ECU recalibration, and all hoses, wiring, and hardware required for a clean, straightforward installation.
The included Whipple flash programmer recalibrates the factory ECU for optimal fuel, spark, and drivability. The supplied calibration is designed for stock vehicles or those with a cat-back exhaust onlysimply bolt it on and drive.
Quick Specs
- Part Number: WK-1114
- Supercharger: Whipple W140AX Twin-Screw
- Displacement: 2.3L
- Boost Level: 78 PSI
- Fuel Requirement: 91 Octane
- Horsepower Gain: 140+ HP
- Intercooling: Air-to-water, oversized core
- Calibration: Included flash programmer
Fitment
- 2014 GM 2500HD 6.0L
- 2015 GM 2500HD 6.0L
- 2016 GM 2500HD 6.0L
- 2017 GM 2500HD 6.0L
- 2018 GM 2500HD 6.0L
FAQs
Is this system safe for towing?
Yes. The conservative boost level, large intercooler, and efficient twin-screw design make this system ideal for towing and heavy-duty use.
Does this kit require additional fuel system upgrades?
No. The system is designed to work with the factory fuel system on stock or lightly modified trucks.
Why Buy from Beefcake Racing?
Beefcake Racing specializes in proven power solutions for real-world performance. Our team understands Whipple systems inside and out and is here to help before and after the sale. Call 1-855-827-7223 or email sales@beefcakeracing.com for expert support.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

