Holley EFI

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...

The carbon fiber finish universal mount dash bezel for the Holley 7-inch dash is made of UV resistant composite for durability. The overall dimensions are 12 x 21 inches to allow you to trim to fit...

These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley part #558-466 adapts harnesses with a (MPFI) Weatherpack...

Holley does it again with their new die cast aluminum fuel pressure regulators. The same Holley quality that you expect at a price point that every budget can handle. The regulator contains 3/8" NPT...

When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your life...

Replacement I/O Adapter for Digital Dash Features8mm Plug Wire SizeOffers low 350 Ohms per foot resistance while maintaining very high noise suppressionAvailable in three colors (Red ,Black, and...

I/O Adapter w/Terminated Vehicle HarnessFeatures8mm Plug Wire SizeOffers low 350 Ohms per foot resistance while maintaining very high noise suppressionAvailable in three colors (Red ,Black, and...

I/O Adapter w/Unterminated Vehicle HarnessFeatures8mm Plug Wire SizeOffers low 350 Ohms per foot resistance while maintaining very high noise suppressionAvailable in three colors (Red ,Black, and...

Service replacement digital dash harness. Features8mm Plug Wire Size Offers low 350 Ohms per foot resistance while maintaining very high noise suppression Available in three colors (Red ,Black,...

J4 ECU Connector 26 User Programmable Inputs and OutputsFeaturesBase Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.Total Height with 92/102mm EFI...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen...

Dominator EFI GM Drive-By-Wire HarnessFeaturesBase 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...