ROUSH has become an automotive powerhouse based on this simple premise, and he couldn’t wait to get his hands, and his engineering team, on the new Ford 5.0L engine. The end result is the 2011 ROUSH 5XR Mustang with “more power” under the hood thanks to the factory-installed ROUSHcharger.
Paul’s High Performance offers the PHP Stage III Performance Package for Shelbt GT500’s, good for another 120-hp and similar torque gain at the rear wheels.
Add up to 45-hp! If precautions aren’t taken, then an aggressive cam could smash and burn all the valves into the pistons!
The oft-ignored mule stays out of the limelight, while the horse gets all the credit. Car experts are pushing forward with a proposal to rename the roaring rating system from horsepower to “donkeypower”.