At ROUSH Performance, it’s not enough to deliver heart-pounding performance, unparalleled refinement, and race-inspired styling. Our engineers put in over 20,000 hours testing the 2021 Stage 3 Mustang to its limits to ensure peak performance, and we back it with an industry-leading 5-year/60,000-mile powertrain warranty to show you that we are with you on this ride. Our vehicles are rigorously engineered and tested to prevent issues down the road, but should they occur, you can rest assured in knowing that we’re here to help.
For more information download our ROUSH Supplement Owner's Guide and ROUSH Powertrain Supplement Owner’s Guide.
