Holley EFI

Service Secondary Throttle Body with Injectors. Intended to be used as a service component or when building a custom 4150 style 2x4 setup.FeaturesMade from a 5/32” thick UV-resistant ABS composite...

12' Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)Features5x 20awg wires2x shielded 18awg wiresAvailable in 25’ or 100’ spoolsSpecifically designed for wide band...

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...

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...

Introducing 2x4 Terminator Stealth EFI upgrade components. The wait is over. These upgrade components allow you to use your current Terminator Stealth EFI throttle body, install a new main harness,...

The Holley GM LS7 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited...

Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM's popular LS engines! The 550-613 kit controls fuel, spark, drive-by-wire and 4L60/4L80E transmissions through the...

These Stealth style throttle bodies DO NOT include injectors; they are designed to be used on MPFI intake manifolds.FeaturesMade from a 5/32” thick UV-resistant ABS composite materialBezels are as...

This cast EFI intake elbow allows the use of GM LS throttle bodies on any intake manifold w/ the 4150 mounting flange. Slotted mounting holes & dual throttle cable mounting bracket bosses allow the...

Holley's BILLET LS Throttle Bodies are the BIGGEST BORE - MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine! This all new design...

Rigidly mounting pressure transducers to your engine is never a good idea. Introducing the Holley EFI sensor block! Compatible with all transducers that utilize 1/8 NPT male threads and 7/8" or...

These analog-style gauges are designed specifically for use with Holley EFI systems. They are compatible with all Terminator, HP, and Dominator ECU's, allowing them to be installed in a variety of...