Founded by former race crew chief and car owner Art Whipple in 1987, this Fresno, California, company manufactures twin-screw superchargers for automotive and marine racers and anyone else looking to improve their engine’s performance. As one of a few different types of “power adders,” as they are commonly referred to (turbochargers and nitrous oxide are others), superchargers introduce additional air into an engine beyond what the engine can pull on its own. The more air that can be delivered into the engine, the more fuel that can be proportionally added.