Overview
Stage 2 Performance Package – 2015–2017 Ford Mustang GT 5.0L
Ready to turn your S550 Mustang GT into the monster Ford should’ve built? Our Stage 2 Package adds serious horsepower, massive torque gains, and a huge jump in overall performance — all while keeping drivability smooth and staying 50-state legal.
Choose from three industry-leading supercharger systems and build the exact setup you want.
What’s Included
Choose Your Supercharger (All 50-State Legal)
1. Edelbrock E-Force Supercharger – #15839
A dependable, OEM-style supercharger known for smooth power delivery and long-term reliability.
- Instant torque throughout the RPM range
- Clean fit & finish
- Factory-like drivability
- 50-state emissions compliant CARB EO: D-215-107
Perfect for owners who want strong performance with a refined, stock-like feel. Up to 610WHP
2. Whipple Stage 2 Supercharger Kit – #WK-2620-STG2-30
Whipple’s Stage 2 system delivers massive top-end power and a signature whine everyone loves.
- Big horsepower gains
- High-efficiency intercooler
- Fast, aggressive throttle response
- 50-state legal CARB EO: D-231-55
Ideal for drivers who want maximum performance with room to grow later. Gains up to 825 engine HP on 93 octane
3. ProCharger Stage II Intercooled System (Factory Airbox)
A centrifugal supercharger system that provides linear, predictable boost with excellent cooling.
- Strong top-end pull
- Efficient air-to-air intercooler
- Uses factory airbox for stealth/heat management
- 50-state legal
A great choice for drivers who prefer a smooth, turbo-like power curve. Hp gains up to 60-65%+
Optional West Bend Dyno Installation
Choose WBD Installation at checkout for the best results:
- Professional supercharger installation
- Fluids, belts, and hardware installed correctly
- Before & after dyno pulls showing exact horsepower gains
- Safety inspection & calibration verification
- Peace of mind knowing the build was done right