5xr
2011 Roush 5XR Ford Mustang Kit Adds More of Everything
The new Ford Mustang GT has only been on the market for a few months and Roush hasn’t wasted any time in introducing what it calls the 5XR Mustang tuning package for $15,390. Much of that cost goes to the R2300 Roushcharger, taking horsepower to 525-hp (from the factory 412-hp) and torque to 465 ft-lbs….
