Lucas Bell 
When it comes to the world of aftermarket muscle cars, few names carry as much weight as Roush Performance. Since 1995, the Metro Detroit based race shop has been cranking out some of the most potent Ford Mustang models money can buy, culminating in the new 2021 Roush Stage 3 Mustang. Based on the Ford Mustang GT, this modified muscle car cranks out 750 horsepower from its supercharged 5.0L V8 engine, and brings a suite of other visual and performance modifications to the table. In order to prove just how impressive this package is, Roush invited one of the pony car’s most notorious detractors to give it a try: Aaron Kaufman. Thankfully, they also stuck some cameras in the car so we can watch Kaufman rip the thing around the Continental Tire Proving Ground in Uvalde, Texas.
2021 Roush Stage 3 Mustang
Kaufman will be a familiar face to many automotive enthusiasts, after making a name for himself working alongside the Gas Monkey Garage crew. Now though, Kaufman has his own show called “Shifting Gears”, where he indulges in the sort of shenanigans we all enjoy seeing. Throughout his television career, Kaufman made it known that he didn’t share his colleagues’ love of the Mustang, but Roush Performance believed that they could change that. Considering just how capable the 2021 Roush Stage 3 Mustang is, we’re not surprised by their confidence.
Thanks to the company’s Phase 2 supercharger system, the 2021 Roush Stage 3 Mustang cranks out 750 horsepower and 670 lb-ft of torque. Should that not be enticing enough, the company also offers a Power Boost Package that cranks the wick up to 775 horsepower. You can also spec either a 6-speed manual or a 10-speed automatic gearbox, the latter of which is on display in the video. In its base spec, this modified Mustang is able to do 0-60 mph in just 3.6 seconds, before ripping down the 1/4 mile in just 11.2 seconds.
An All-Around Performer
This isn’t just a drag car however, as Roush includes a uniquely- calibrated MagneRide active suspension in the package. This allows the pony car to pull 1.07 g on the skid-pad, which is quite impressive. Spec the optional Podium Package, and this Roush Stage 3 Mustang picks up some upgraded Brembo brakes, as well as their Active Aerodynamic Carbon Fiber Wing which more than doubles factory downforce figures. Combine that with the car’s R9 Aero Body Kit, and you’re left with one sinister looking street car.
After watching through the video, it is safe to say that Mr. Kaufman’s views on the iconic Ford Mustang have shifted. That likely doesn’t shock anyone, though it may increase your interest in this package. Should you want to stick a Roush Stage 3 Mustang in your own garage, you’ll need to pony up $24,995 and a donor Mustang GT. Sure you could probably get a Shelby GT500 for that money, but there are always different strokes for different folks.
