Holley EFI Universal Fuel Injector 522-421

• Bosch/Ev1 Style Performance Injector
• High Impedance For Use With Saturated Drivers
• Tri-Cone Spray Pattern

Holley products have been the undisputed leader in fuel systems for over 100 years. Holley carburetors power every NASCAR Sprint Cup team and every NHRA ProStock champion. Holleys products include performance fuel pumps, fuel injection, intake manifolds, cylinder heads & engine dressup products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies, Hooker Headers, Flowtech Headers, NOS, Weiand, or Earls, Holley products can give you the edge you need over the competition.