Holley EFI

Do you need precision control over your ignition system? Would your combination benefit from Individual Cylinder Timing Control? Are you experiencing spark issues with your Stock Coils? Are you wanting to convert your Turbocharged Big Block Monstrosity...

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...

LS Hi-Flow Holley EFI Fuel Rails - Fits LS1, LS2, LS3, LS6 & L99 factory intakes Includes (4) -6 to 3/4"-16 O-ring fittings. Fuel Rail mounting brackets and required mounting hardware.FeaturesModular Design w/ Removable TopOverall Height: 13.34” (w/...

The Holley LS1/2/6 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 (Original Equipment) or aftermarket cylinder...

Introducing the Holley EFI Single Channel EGT Kits. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature can help you identify potential horsepower left on the table, or pin...

If you're thinking of building either a high performance or race multi-point fuel injection system for your engine, look no further than Holley for the throttle body. Holley offers a line of universal throttle bodies that range in sizes from 1000 CFM to...

The LS3/L92 Lo-Ram manifolds base intake manifold is designed with a low height to aid the packaging of a plenum mounted air-to-water intercooler for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm...

The Holley LS3 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Lo-Ram intake manifolds are designed for...

Dominator EFI Multi Map SelectorFeaturesBase Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.Total Height with 92/102mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.Port...

Introducing the Holley EFI Wiring Shop. 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 EFI powered...

This Harness is required with HP or Dominator ECUs. Includes, 13' long, 10 AWG main power harness, Qty. (2) 3/8" ring terminals and shrink tube (not pictured) . The harness is fuse protected and covered in braided split loom for additional abrasion...

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...