Introducing the new Hi-Performance Controller.

Give your car a split personality every time the accelerator pedal goes down. From a purr to a ROAR!!!! 
Can be fitted to any vehicle, car or truck from old-school muscle-cars to high-tech vehicles. Go from street quiet to full wide-open for the strip. Use the accelerator pedal to fully and automatically control the opening and closing of the exhaust valve(s), just like on high-end vehicles!