Electronic Fuel Injection (EFI)

Introducing the Holley EFI Stand Alone Digital Dash Kit – the ultimate dash solution you've been searching for! This cost-effective, full-color touch screen dash offers seamless integration with customizable screen and gauge layouts, allowing you to monitor basic engine parameters with ease. Experience the convenience of an included GPS speedometer, all housed in a durable, weather-resistant aluminum casing. Whether you're competing on the track or cruising in your show-winning roadster, enjoy the versatility of multiple gauges and a virtual switch panel. Perfect for anything from Jr. dragsters to daily drivers, the Holley EFI Dash Kit is your all-in-one solution for a modern, sleek dashboard experience.

Unleash the full potential of your LS engine with the Holley EFI Terminator X Max! Why stick to a junkyard ECU with complicated tuning when you can have seamless control and advanced, race-proven technology at an affordable price? The Terminator X Max boasts real-time fuel learning, high impedance injector drivers, a built-in 1bar MAP sensor, and four programmable inputs and outputs, perfect for electric fans, boost control solenoids, and more. With transmission control for 4L60E or 4L80E and Drive-By Wire Throttle Body control included, this kit comes pre-loaded with base maps for common LS engine setups, allowing for quick deployment. The 3.5" LCD touchscreen offers an intuitive calibration wizard plus tuning and gauge displays. Also, Holley EFI's top-tier, user-friendly software suite offers full laptop access for advanced tuning. Whether you're fine-tuning a budget build or crafting a high-octane race car, the Terminator X Max delivers the features and technology you need without breaking the bank!

Unleash the full potential of your LS engine with the HOLLEY EFI Terminator X MAX 24X/1X EV1 LS MPFI Kit with DBW Throttle Body and Transmission Control. Say goodbye to outdated junkyard ECUs with complex interfaces and embrace complete control of your engine with Holley EFI’s self-learning fuel strategies and race-winning technology. Designed for unbeatable performance at a budget-friendly price, Terminator X Max offers real-time fuel learning, high impedance injector drivers, an integrated 1-bar MAP sensor, and four programmable inputs and outputs – perfect for controlling electric fans, boost control solenoids, progressive nitrous control, and more. Engineered for GM LS1/LS6 engines with EV1 injectors and 4L60E/4L80E transmissions, it features drive-by-wire throttle body control and comes preset with base maps for common LS engine setups. This ultimate kit includes a 3.5" touch screen LCD handheld for easy tuning and gauge monitoring, plus Holley EFI’s user-friendly software suite for advanced tuning via laptop. Whether building a budget beater or a high-performance race car, the Terminator X MAX packs cutting-edge features and technology to elevate your ride without breaking the bank!

Introducing the Holley Sniper EFI 4150 Super Sniper 650! Transform your blow-thru carbureted turbo engine to EFI effortlessly. Ideal for lower horsepower applications, this model supports up to 650 HP with its four injector design. With built-in nitrous control, there's no need for a separate controller, simplifying your setup. Each system includes a USB to CAN tuning cable and free Sniper EFI Software for unparalleled engine control. Holley Sniper delivers powerful performance and is packed with features like advanced boost control, programmable air-fuel ratios, and user-friendly adjustability, making it the ultimate choice for enhancing your engine's capabilities.

Introducing the Holley Super Sniper EFI! Transform your blow-through carbureted turbo engine into a high-performance EFI beast with this cutting-edge system. Designed for up to 650 HP, it features four powerful injectors ideal for lower horsepower applications with power adders or additional sensor needs. The Super Sniper boasts built-in nitrous control, eliminating the need for an additional controller. Plus, enjoy limitless engine control with the free Sniper EFI Software and a USB to CAN tuning cable included. Take your engine to the next level with Holley’s superior performance technology!

Unleash the full potential of your Chevy LS engine with the Holley Terminator X Engine Management System! Superior to any junkyard ECU, this advanced system offers unparalleled control with its self-learning fuel strategies and race-proven Holley EFI technology, all at a budget-friendly price. The Terminator X is equipped with real-time fuel learning, high impedance injector drivers, an integrated 1bar MAP sensor, and four programmable inputs and outputs perfect for customizing with electric fans, boost control solenoids, nitrous control, and more. Preloaded with base maps for common LS engine configurations, it ensures a quick start to hit the road or track. The 3.5" touch screen LCD handheld provides an intuitive calibration wizard and tuning options, complemented by Holley EFI's user-friendly software suite for expert tuning via laptop. Whether you're crafting a budget build or a high-powered race machine, the Terminator X delivers the cutting-edge features you need without breaking the bank!

Take control of your LS engine with the Holley Terminator X Engine Management System! Why settle for a junkyard ECU with a cumbersome tuning interface when you can have complete command over your engine with self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price? The Terminator X boasts real-time fuel learning, high impedance injector drivers, an integrated 1-bar MAP sensor, and 4 programmable inputs and outputs ideal for electric fans, boost control solenoids, progressive nitrous control, and more. Preloaded with base maps for common LS engine combinations, you can swiftly move from the garage to the road or track. The 3.5" touchscreen LCD handheld offers an easy-to-use calibration wizard along with tuning and gauge display functions. The package also includes Holley EFI's industry-leading, user-friendly software suite for full laptop access by advanced users. Whether you’re crafting a budget-friendly beater or a boosted race car, the Terminator X provides the features and technology you need without breaking the bank!

Unleash the full potential of your LS engine with the Holley Terminator X Engine Management System! Why settle for a mediocre, junkyard ECU when you can harness the power of advanced, race-winning technology at a budget-friendly price? The Terminator X delivers unmatched control with self-learning fuel strategies, optimized for up to 8 injectors and coils. It features real-time fuel learning, high impedance injector drivers, and an integrated 1bar MAP sensor. With 4 programmable inputs and outputs, it's ideal for managing electric fans, boost control solenoids, and more. Preloaded base maps for common LS setups ensure a fast and smooth start. The included 3.5" touchscreen LCD and industry-leading software make tuning a breeze for both beginners and advanced users. Whether you're customizing a budget-friendly street build or a high-performance track machine, the Terminator X has the features you need without breaking the bank!

Unleash the full potential of your LS engine with the Holley Terminator X Engine Management System. Whether you're crafting a budget-friendly beater or a high-powered race car, this system delivers exceptional control and self-learning fuel strategies at a price you can afford. Say goodbye to outdated ECUs and hello to precise performance with features like real-time fuel learning, high impedance injector drivers, and an integrated 1-bar MAP sensor. Perfect for GM LS engines with a 58x crank and 4x cam, the Terminator X supports up to 8 injectors and 8 coils, offering flexible tuning options via its USB/CAN interface. Enjoy seamless integration with powerful software suited for both novice and advanced users, empowering you with full access to tune and refine your setup. With included base maps and easy-to-use software, you'll be out of the garage and hitting the track in no time. The Holley Terminator X is the ultimate choice for unparalleled engine management control at an unbeatable value.

Unleash the full potential of your LS engine with the Holley Terminator X MAX Engine Management System! Say goodbye to subpar junkyard ECUs and embrace cutting-edge, race-proven technology at an affordable price. This system offers user-friendly control, self-learning fuel strategies, and seamless tuning capabilities, all packed into a sleek kit. The Terminator X MAX is designed to optimally manage your GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with a Drive-By-Wire Throttle Body. With eight high-impedance injectors and coils, real-time fuel map learning, and a built-in 1bar MAP sensor, you’ll achieve precision performance. Its four programmable inputs and outputs are perfect for customizing with accessories like electric fans, boost control solenoids, and nitrous systems. Plus, the easy-to-use 3.5" touchscreen and Holley EFI software make tuning a breeze for both novices and experienced users. Ready with base maps for common LS builds, the Terminator X MAX gets you on the track or road faster. Boost your engine's power without breaking the bank!

Take control of your LS engine with the Holley Terminator X MAX! Ditch the junkyard ECU and experience seamless engine management with self-learning fuel strategies and the race-winning technology of Holley EFI, all at a budget-friendly price. This system features real-time fuel learning, high impedance injector drivers, and an integrated 1bar MAP sensor, with 4 programmable inputs and outputs perfect for electric fans, boost control solenoids, progressive nitrous control, and more. Enjoy Drive-by-Wire throttle body control and user-friendly features like base maps for quick setup and a 3.5" touch screen for easy tuning. Unlock the potential of your LS engine, whether it’s a budget build or a boosted racer, with Terminator X MAX’s unmatched technology and affordability.

Unleash the full potential of your LS engine with the Holley Terminator X Engine Management System! Say goodbye to outdated junkyard ECUs and their clunky interfaces. With Terminator X, experience total command over your engine, thanks to its self-learning fuel strategies and Holley's race-winning technology—all at an unbeatable price. This system boasts real-time fuel learning, high impedance injector drivers, an on-board 1-bar MAP sensor, and 4 programmable inputs and outputs, perfect for electric fans, boost control solenoids, and more. Pre-loaded with base maps for common LS configurations, the Terminator X gets you from garage to road or track in no time. These kits come with a USB/CAN tuning cable and require the free Terminator X Software for initial setup, offering multiple calibrations for both naturally aspirated and boosted engines. Whether you're crafting a budget ride or a high-performance race car, the Holley Terminator X has you covered with the features and advanced technology you need.

Elevate your LS engine's performance with the Holley EFI LS Hi-Flow Fuel Rails in sleek black. Perfectly engineered for LS1, LS2, LS3, LS6, and L99 factory intakes, these durable aluminum fuel rails boast a bright dip, black anodized finish with a laser-etched EFI logo for enduring style. The 5/8” fuel passage ensures ample flow capacity for high horsepower demands. Designed for seamless connection, they accommodate -8 (3/4-16) O-ring fittings and come with four -6 to 3/4-16 O-ring adapters. For LS2, LS3, and L99 models, taller brackets and adapter O-rings are needed for EV1 injectors – find these essentials in Holley part number 534-212. LS1 and LS6 owners can enjoy effortless compatibility with EV1 injectors using Holley part number 534-211 for factory fuel line connections. Ideal for high-performance enthusiasts seeking superior fuel delivery solutions.

Introducing the latest innovation from the Holley EFI engineering team: the Holley EFI High Flow Dual Port Boost Control Kit. This exceptional kit is equipped with pre-installed high flow solenoids featuring a dual O-ring sealing design to eliminate boost leaks from the manifold. It includes a sleek black anodized billet aluminum manifold with built-in mounting provisions for seamless integration. With two pre-terminated connectors for quick installation and additional pins for customizing harness lengths, set-up has never been easier. The kit also comes with two 1/4" push-lock fittings to simplify the installation process further. The Holley EFI boost control proprietary solenoid design offers up to 40% more flow compared to similar designs and enhances flow by 90% over conventional 3-port boost control solenoids, ensuring peak performance and reliability.

Unleash the potential of your LS engine with the Holley Terminator X MAX Engine Management System. Say goodbye to outdated junkyard ECUs and embrace the seamless, intuitive control that comes with Holley EFI's cutting-edge technology. This budget-friendly system offers real-time fuel learning, high impedance injector drivers, and an integrated 1bar MAP sensor, alongside 4 programmable inputs and outputs for versatile performance enhancements. With support for electronic fans, boost control solenoids, progressive nitrous, and more, this system is a game-changer for any GM LS1/LS6 engine equipped with a 24x crank reluctor and 4L60E/4L80E transmissions. Part number 550-916 provides superior transmission control, complete with pre-loaded base maps for common LS engine setups, ensuring you hit the road or racetrack faster than ever. Plus, enjoy advanced tunability with Holley EFI's sophisticated software suite, perfect for both novices and seasoned enthusiasts aiming to build anything from a budget-friendly street machine to a high-performance race car.

Unleash the full potential of your engine with the Holley EFI 48 LB/HR Performance Fuel Injectors - Set of 8. Engineered with precision lapped disc valves, high-quality brass windings, and high-temp O-rings, these injectors ensure superb linearity, eliminating the common "bounce" at low pulse widths. Each injector boasts a Bosch/EV1 style design and a tri-cone spray pattern, with a high impedance of 12.2 Ohms, supporting up to a whopping 765 horsepower. With a rated flow of 48 lb/hr at 43 PSI, these injectors are the ultimate solution for achieving precision fuel delivery you can rely on. Perfect for accommodating a wide range of vehicles, Holley EFI injectors are the go-to choice for performance enthusiasts.