High horsepower can't be made without the proper supporting modifications. Roush made sure to take care of everything with this Roush Phase 1 to Phase 3 675HP Supercharger Upgrade Kit (421596) from CJ Pony Parts!
Features and Benefits:
- Delivers 675 horsepower
- Delivers 585 ft/lb of torque
- Plug-and-play wiring
- Protects against possible engine damage
- Requires no splicing or cutting
- For manual transmissions only
Roush's Phase 3 Supercharger Upgrade Kit is calibrated to deliver 675 hp and 585 ft/lb of torque. This power-adder upgrade increases your Phase 1 Roushcharged Mustang's horsepower rating by 100 hp and 80 ft/lb of torque! A fuel pump voltage regulator and plug-n-play wiring harness were developed to help protect against extreme fuel-to-air changes and possible engine damage. The plug-n-play wiring harness allows for easy installation or removal if the kit ever needs to be removed. No cutting or splicing of factory wiring or harness is required!
- 80mm Supercharger pulley
- Roush fuel pump voltage regulator with Roush plug-n-play wiring harness
- Cold air induction system
- 2085mm 6-rib serpentine belt
- Unique Roush PCM calibration
- 2011-2014 GT Mustang with Manual Transmission
*Does NOT fit the Boss 302.