Holley EFI Terminator X MPFI – Self-learning EFI system for LS2/LS3 & late LS truck engines with 58x/4x, featuring real-time tuning, high-impedance injector drivers, and built-in MAP sensor.

Holley EFI LS7 Hi-Ram Intake Manifold, EFI, 105mm LS Throttle Body – High-performance intake manifold for GM LS7 engines, featuring a 105mm throttle body flange and black finish.

Holley EFI LS7 Hi-Ram Intake Manifold, EFI, 105mm LS Throttle Body – High-performance manifold designed for GM LS7 engines with a 105mm throttle body flange for improved airflow.

Holley EFI LS3 Lo-Ram Manifold Kit, Single Injector – Low-profile intake manifold designed for forced induction LS3/L92 engines with provisions for a single injector per cylinder.

Holley EFI LS3 Lo-Ram Manifold Kit, Dual Injector – High-performance intake manifold with provisions for dual injectors per cylinder, designed for GM LS3/L92 engines.

Holley EFI LS3 Hi-Ram Intake Manifold, EFI, 1 x 105mm LS Throttle Body, Black – High-performance manifold for GM LS3/L92 engines, designed for improved airflow with a 105mm throttle body flange.

Holley EFI LS3 Hi-Ram Intake Manifold, EFI, 1 x 105mm LS Throttle Body – High-performance manifold for GM LS3/L92 engines with a 105mm throttle body flange, optimized for improved airflow.

Holley EFI LS3 Hi-Ram Intake Manifold, EFI, 1 x 92mm LS Throttle Body, Black – High-performance manifold for GM LS3/L92 engines with a 92mm throttle body flange for optimized airflow.

The Holley EFI LS3 Black Hi-Ram Intake Manifold is a high-performance intake designed for LS3/L92 engines, featuring a black finish and compatibility with a 92mm LS throttle body.

Holley EFI LS1/2/6 Hi-Ram Intake Manifold, EFI, 105mm LS Throttle Body, Black – High-performance manifold for GM LS1, LS2, and LS6 engines with a 105mm throttle body flange for optimal airflow. 

Holley EFI LS1/2/6 Hi-Ram Intake Manifold, EFI, 105mm LS Throttle Body – High-performance manifold for GM LS1, LS2, and LS6 engines with a 105mm throttle body flange for enhanced airflow.

Holley EFI LS Injector Harness (Part #558-201) – Pre-terminated wiring harness for GM LSx engines, designed for EV6 (USCAR) style injectors, compatible with Holley HP, Dominator, and Terminator X ECUs.

​Holley EFI HP ECU & Harness Kit for LS2/3/7 with NTK sensor – Plug-and-play system featuring a programmable HP ECU, NTK wideband O2 sensor, and harnesses for GM LS2, LS3, and LS7 engines with 58x crank sensors and EV6 injectors