Fuel Injection Systems

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 Say goodbye to outdated ECUs and hello to precise performance with features like real-time fuel learning, high impedance injector drivers, and an integrated 1-bar MAP sensor.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.

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 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 Say goodbye to outdated junkyard ECUs and embrace the seamless, intuitive control that comes with Holley EFI's cutting-edge technology.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.

Discover the cutting-edge performance of the Holley EFI Terminator X Stealth 4150 in sleek Black. Equipped with four 100LB/HR injectors, this EFI system supports up to 650 HP naturally aspirated or 600 HP with forced induction. Experience enhanced idle stability, drivability, and maximum horsepower with self-learning fuel maps and precision ignition timing control. Perfect for both classic and modern transmission applications, it features GM and Ford transmission kick-down provisions and optional control for Pre-2009 GM 4L60E/4L80E transmissions. Enjoy easy installation with a bolt-on design and seamless setup via a high-resolution touchscreen—no laptop needed. Elevate your ride with this stealthy integration of power and technology.

Take control of your LS engine with the Terminator X from Holley EFI! Why compromise with a junkyard ECU and a clunky tuning interface when you can enjoy unrivaled engine control, self-learning fuel strategies, and Holley EFI's award-winning, race-proven technology—all at a price that's easy on your wallet! The Terminator X features real-time fuel learning, high impedance injector drivers, an integrated 1-bar MAP sensor, and four programmable inputs and outputs, perfect for electric fans, boost control solenoids, progressive nitrous control, and more. Fully equipped with base maps for common LS engine combinations, this system allows you to hit the road or track quickly. This Terminator X kit comes with a USB/CAN tuning cable and requires the free Terminator X Software for initial setup, offering advanced users full laptop access with Holley EFI's user-friendly software suite. Whether building a budget-friendly beater or a high-performance racer, 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 MAX Engine Management System! Ditch the limitations of a junkyard ECU and embrace advanced engine control with Holley EFI’s race-proven technology, all at a budget-friendly price. The Terminator X Max offers self-learning fuel strategies, real-time fuel map learning, high impedance injector drivers, and an integrated 1bar MAP sensor. It includes 4 programmable inputs and outputs for seamless integration with electric fans, boost control solenoids, and much more. With added 4L60E/4L80E transmission control and pre-loaded base maps for common LS engine combinations, you’ll be ready for high-performance on the road or track in no time. For the ultimate in engine tuning, the free Terminator X Software provides multiple calibrations and full laptop access for advanced users. Whether it's for a budget build or a high-powered race car, take command with the Holley Terminator X Max!

Elevate your engine's performance with the Holley Terminator X Stealth 4150 EFI Fuel Injection System. This polished powerhouse boasts 4, 100LB/HR fuel injectors, supporting up to 650 HP naturally aspirated or 600 HP with forced induction. Enjoy seamless integration and enhanced drivability with features like the self-learning Terminator X ECU for optimized fuel maps and ignition timing. Perfect for GM and Ford transmission compatibility, the Stealth 4150 ensures a sleek fit with stealthed wiring and a high-resolution touchscreen for easy setup. Experience improved performance and dependability with this tunable, shiny EFI kit.

Elevate your LS engine's performance with the Holley Terminator X MAX Engine Management System. Say goodbye to outdated junkyard ECUs and embrace cutting-edge technology that puts you in the driver’s seat of advanced engine control. This system offers self-learning fuel strategies, real-time fuel mapping, and high impedance injector drivers, ensuring precise and efficient tuning. Perfect for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank and 4x Cam, it includes features like Drive-By-Wire Throttle Body control, an onboard 1-bar MAP sensor, and a robust suite of inputs and outputs for seamless integration with fans, boost control solenoids, and nitrous systems. With Holley EFI’s easy-to-use software suite and comprehensive base maps, get your build from the garage to the track in no time. Whether you’re crafting a budget build or a high-performance race car, the Terminator X MAX ensures you’re equipped with industry-leading technology at an accessible price.

Introducing the Holley Terminator X Engine Management System, specifically designed for Ford Modular engines. Perfectly compatible with both 2V and 4V configurations, this system is a must-have for 1996-2004 Mustangs, 1995-2006 F150s, and 2002-2005 Explorers. Whether you're running a 4.6L or 5.4L power plant, our plug-and-play solution offers real-time fuel learning, high impedance injector support, an integrated 1-bar MAP sensor, and versatile inputs/outputs for optimum performance. The included 3.5" LCD touchscreen provides a user-friendly calibration wizard, tuning capabilities, and gauge displays. Offering industry-leading support and a robust software suite, the Terminator X is the ultimate solution for both aspiring car enthusiasts and seasoned race car builders. Experience the cutting-edge features and advanced technology without breaking the bank. Unleash your engine's true potential with Holley EFI's Terminator X.

Introducing the Holley EFI Terminator X Max Stealth 4150 with Transmission Control, Shiny – the ultimate solution for horsepower enthusiasts and performance seekers. This polished marvel is engineered to perfection, featuring four 100LB/HR fuel injectors that support up to a staggering 650 HP naturally aspirated or 600 HP on forced induction applications. With self-learning fuel maps and ignition timing control, the Terminator X ECU enhances idle stability, drivability, and maximizes wide-open throttle horsepower. Designed with seamless integration in mind, it includes transmission control for Pre-2009 GM 4L60E/4L80E Transmissions and boasts convenient transmission kick down provisions for revered GM and Ford applications. The high-resolution full color touchscreen makes initial setup and tuning a breeze—no laptop required—and the stealth design ensures that all wiring exits discreetly below the rear fuel injector cover. Experience unparalleled performance and dependability with the Holley EFI Terminator X Max Stealth 4150. Available now in a sleek shiny finish!

Unleash the ultimate power and precision with the Holley Sniper EFI 1250 HP Super Sniper Fuel Injection Systems by Holley EFI. Engineered for high-performance enthusiasts, this advanced system is designed to deliver unparalleled fuel efficiency and maximum horsepower. With its cutting-edge technology, easy installation, and user-friendly interface, the Super Sniper brings modern performance to your classic ride. Perfect for high horsepower street or race applications, experience consistent power, enhanced drivability, and reliable efficiency every time you hit the road. Upgrade your system today and experience the Sniper advantage!

Rev up your engine's performance with the Holley Sniper 1 EFI Self-Tuning Fuel Injection System from Holley EFI. Designed to seamlessly upgrade your vehicle, this state-of-the-art system offers precision fuel management with a hassle-free, self-tuning feature. Experience the perfect blend of modern technology and reliability, ensuring your vehicle runs smoother, more efficiently, and with more power. Say goodbye to carburetor headaches and enjoy a new level of performance and ease, courtesy of Holley Sniper 1 EFI.

Unleash the full potential of your engine with the Holley Sniper EFI Stealth 4150 Fuel Injection System! Designed to boost your vehicle's performance up to a whopping 650HP, this kit features a shiny throttle body with a classic 4150 flange, ensuring a perfect fit and finish. Complete with injectors, a high-performance fuel pump, regulator, harness, and tuner, the Sniper EFI Stealth 4150 offers seamless integration and unrivaled efficiency. Elevate your ride with modern fuel injection technology in a package that looks as good as it performs. Transform your driving experience with Holley Sniper's top-tier engineering.