Holley Inc. designs, manufactures, and distributes automotive aftermarket products to car and truck enthusiasts in the United States, Canada, and Europe. The company's performance automotive products include carburetors, fuel pumps, fuel injection systems, nitrous oxide injection systems, superchargers, exhaust headers, mufflers, distributors, ignition components, engine tuners, automotive performance plumbing products, as well as exhaust products, including shifters, converters, transmission kits, transmissions, tuners, and automotive software. It also offers brakes and brake systems, vehicle restoration parts, helmets, head and neck restraints, seat belts, fire suits, fuel and exhaust system cleaners, suspensions and chassis, wheels and wheel accessories, and apparel and collectibles. The company sells its products under the Holley EFI, Holley, MSD, Simpson, EDGE, Superchips, Diablosport, Accel, Flowmaster, and other brand names through DTC, E-tailer, warehouse distributor, traditional retailer, automotive platforms, and jobber/ installer channels. Holley Inc. was founded in 1903 and is headquartered in Bowling Green, Kentucky.