Even with those added costs, the Roush Stage 3 Mustang should slip nicely between the Boss 302 and GT500’s respective $42,200 and $59,200 price tags, which is fitting for the upgrades it offers.

Prices shown are the prices you can expect to pay for a 2017 Roush Performance Stage 1 Mustang 2 Door Convertible across different levels of condition. Edit options.