Holley EFI

316 Stainless steel Cap for 1/4" EGT bungs.FeaturesMachined billet constructionClear/black anodized for long-term protection from elements and fuelsWorks with all front feed Lo-Ram bases (300-602, 300-602BK, 300-603, 300-603BK)Modular Lo-Ram design...

Holley EFI Wiring Shop just keeps getting better! We have one goal, to provide you a one stop solution for all of your wiring components needs. From connectors and pins to wire loom and tools! We have everything you need to build or service your Holley...

316 Stainless steel weldment bung for 1/4" EGT probes. These high-quality weld bungs feature a built-in step, which keeps the bung held in place during the welding process, ensuring a perfect weld.FeaturesMachined billet constructionClear/black anodized...

Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. They...

The P/N 300-630 & 300-630BK Lo-Ram 105 mm billet throttle body adapters are designed as part of the Holley LS front-feed Lo-Ram EFI intake manifold kits. It is commonly known billet is the best. The strength and rigidity of these components is...

The Holley LS1/2/6 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE or aftermarket cylinder heads. The 300-602...

This coil is designed for use with Holley® HP and Dominator ECUs, as well other EFI systems that can drive "smart" ignition coils. Although it is designed for high powered race applications, it produces more spark energy, which means you get hotter...

The P/N 300-685 & 300-685BK Lo-Ram 105 mm billet throttle body adapters are designed as part of the Holley LS3 front-feed Lo-Ram EFI intake manifold kits. It is commonly known billet is the best. The strength and rigidity of these components is...

Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. They...

Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. They...

Holley EFI Wiring Shop just keeps getting better! We have one goal, to provide you a one stop solution for all of your wiring components needs. From connectors and pins to wire loom and tools! We have everything you need to build or service your Holley...

The black universal mount dash bezel for the Holley 6.86 inch pro dash is made of UV resistant composite for durability. The overall dimensions are 12 x 21 inches to allow you to trim to fit your application.FeaturesDesigned to work with the Holley EFI...