Whipple Supercharger Kit Intercooled W140AX 2.3L (20042006 GM Truck / SUV 4.8L) WK-1100
Intercooled Twin-Screw Supercharger System for 4.8L GM Trucks & SUVs
The Whipple W140AX 2.3L Intercooled Supercharger Kit is a complete, bolt-on forced-induction system engineered specifically for 20042006 GM full-size trucks and SUVs equipped with the 4.8L V8. Designed to deliver massive gains with OEM-level drivability, this system produces 160+ horsepower increases on 91-octane fuel with just 78 psi of boost.
At the heart of the system is Whipples W140AX 2.3-liter twin-screw supercharger, capable of reaching up to 99% volumetric efficiency. Paired with a massive oversized air-to-water intercooler, the system delivers exceptional charge-air cooling for consistent power under loadwhether towing, daily driving, or spirited acceleration.
A unique intercooled bypass system minimizes parasitic loss during cruising to less than 1 horsepower, improving fuel economy while maintaining instant boost when you hit the throttle. The system is designed to bolt onto stock engines yet has enough headroom to support future upgrades.
Performance Highlights
- Gain 160+ 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 strong torque increase
- Designed for stock engines with room for modified builds
- Complete bolt-on systemjust install and drive
Quick Specs
- Part Number: WK-1100
- Supercharger: Whipple W140AX Gen 4 (2.3L)
- Engine: GM 4.8L V8
- Boost Level: 78 psi
- Power Gains: 160+ HP
- Fuel Requirement: 91 octane
- Intercooler: Oversized air-to-water system
- Tuning: SCT Flash Programmer included
- Installation: Complete bolt-on kit
Whats Included
- W140AX 2.3L twin-screw supercharger
- Oversized air-to-water intercooler
- Aluminum high-flow intake manifold
- High-flow fuel injectors
- SCT Flash Programmer for ECU recalibration
- Pre-formed hoses and required wiring connectors
- All hardware necessary for installation
Important Notes
- Calibration is intended for stock vehicles or cat-back exhaust only
- Vehicles with major engine modifications should consider a tuner kit
- Power gains may vary based on conditions and configuration
FAQs
Is this system suitable for daily driving and towing?
Yes. The intercooled bypass system and conservative Whipple calibration provide excellent drivability, smooth power delivery, and improved torque for towing.
Can this kit support future engine upgrades?
Absolutely. The W140AX 2.3L platform offers ample airflow capacity for additional modifications beyond a stock engine.
Fitment
- 2004 GM Truck / SUV 4.8L
- 2005 GM Truck / SUV 4.8L
- 2006 GM Truck / SUV 4.8L
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 future mods? Call 1-855-827-7223 or email sales@beefcakeracing.com.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
