ROUSH 2018-2020 Ford Mustang 5.0L V8 Phase 2 Supercharger Kit 0 The ROUSH Phase 2 Supercharger kit builds on the enhanced performance of the Phase 1 supercharger system and boosts the stock 5.0L V8 Ford Mustang GT to an astounding 750 horsepower and 670... $8,399.99 Quick view add to cart Add Wish List