2020-2023 Ford Mustang Shelby GT500 PSI 900X Stage 3 Performance Package

PSI Proformance 900X Stage 3 Performance Package for 2020-2023 Ford Mustang Shelby GT500

The 2020+ Shelby GT500 has already set the bar as the most capable production Mustang to date. However, at PSI Proformance, we understand that our customers are always looking for that extra edge—more power, more performance, and more thrill. That's why we've created the PSI Proformance 850X Stage 3 Performance Package, a complete, carefully engineered solution to take your GT500 to the next level.

Our comprehensive Stage 3 package saves you time, money, and headaches by providing a streamlined upgrade path, ensuring you can maximize your car's potential with ease and confidence. Whether you're chasing power gains or overall performance improvements, we've got you covered with the PSI Proformance difference.

Stage 3 Performance Package Includes:

• Kong Performance CNC Ported Factory Supercharger Service
• Kook Longtube Headers with Catted X-Pipe
• VMP Supercharger Lid
• Upgraded Throttle Body
• Cold Air Intake System
• Griptech 2.7 Pulley
  
• ID 1050X Injectors
• 170° Thermostat
• Upgraded Heat Exchanger
• Whipple Intercooler Core Upgrade
• Custom Dyno Tune
• Professional Installation at PSI Proformance
• Before and After Dyno Results

+$500 for TCM tuning including license fee. Please inquire for if you have or would like to purchase Rtd or your own mpvi device .

Kong Supercharger Service Details 

Included Machined Features: (as seen in images)

• Optimized Inlet – Designed for unrestricted airflow, capable of supporting up to a 108mm throttle body

• CNC Ported Discharge Area – Enhances rotor discharge airflow for better efficiency and power delivery

• CNC Ported Runners – Precision porting from top to bottom with unique velocity transitions built into the top of the ports for improved flow dynamics and performance

This performance package is designed to product approximately 900WHP on 93 octane fuel.

THE FIRST TO THE 9S AND THE 8S, AND STILL THE FASTEST! 

*Pricing includes a single fuel tune. Please contact us for options on Flex Fuel or race gas tuning.

This package is intended exclusively for off-highway, race, or competition use and is not legal for use on public roads or highways. The vehicle owner assumes full responsibility for ensuring compliance with all applicable federal, state, and local laws and regulations pertaining to modified vehicles.