{"product_id":"holley-efi-terminator-x-max-2007-2012-gen-iii-hemi-550-1423","title":"Holley EFI Terminator X Max Gen III HEMI EFI Controller: Chrysler GEN III HEMI (06-12)","description":"\u003ch3\u003eHolley EFI Terminator X Max Gen III HEMI EFI Controller\u003c\/h3\u003e\u003cp\u003e2006–2012 Chrysler 5.7L \/ 6.1L \/ 6.4L GEN III HEMI Engines\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e550-1423\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Holley EFI Terminator X Max Gen III HEMI EFI Controller is a cutting-edge engine management system designed specifically for Chrysler GEN III HEMI engines produced between 2006 and 2012. Compatible with the 5.7L, 6.1L, and 6.4L engines equipped with the factory Drive-by-Wire (DBW) throttle body, this controller delivers precise fuel and ignition control for non-VVT applications. Whether you're upgrading a street machine, building a track-ready race car, or tuning a boosted setup, the Terminator X Max offers a comprehensive, plug-and-play solution that combines advanced features with user-friendly operation.\u003c\/p\u003e\u003cp\u003eEquipped with real-time fuel learning and high impedance injector drivers, this EFI controller simplifies tuning and ensures optimal engine performance. The included 3.5-inch touchscreen handheld and Holley’s industry-leading software suite provide both novice and advanced tuners with intuitive tools to quickly dial in their setups and monitor critical engine parameters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Terminator X Max EFI Controller is packed with versatile features designed to maximize control and customization for your GEN III HEMI engine:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-play compatibility with 2006–2012 Chrysler 5.7L, 6.1L, and 6.4L GEN III HEMI engines using factory DBW throttle bodies (non-VVT only)\u003c\/li\u003e\n\u003cli\u003eHigh impedance injector drivers compatible with Holley EFI and most stock injectors (does not support low impedance injectors)\u003c\/li\u003e\n\u003cli\u003eIntegrated Bosch LSU 4.9 wideband O2 sensors for precise air\/fuel ratio monitoring and tuning accuracy\u003c\/li\u003e\n\u003cli\u003eBuilt-in 1 bar MAP sensor with the option to disable for external MAP sensor use, ideal for boosted applications\u003c\/li\u003e\n\u003cli\u003eFour programmable inputs and outputs supporting electric fans, boost control solenoids, nitrous activation, and more\u003c\/li\u003e\n\u003cli\u003eAdvanced boost control options including boost vs. time, gear, RPM, speed, and built-in boost safeties\u003c\/li\u003e\n\u003cli\u003eComprehensive nitrous control with channels for wet\/dry, progressive or non-progressive operation, and closed-loop AFR targeting\u003c\/li\u003e\n\u003cli\u003eMultiple advanced tuning tables (1D and 2D) for fuel, spark, and other engine parameters, allowing nearly unlimited configuration\u003c\/li\u003e\n\u003cli\u003eOnboard diagnostic LEDs for quick status checks including ECU power, engine run, TPS calibration, and cam signal\u003c\/li\u003e\n\u003cli\u003eCompact ECU design measuring 7.45” x 4.1” x 1.66” for flexible mounting options\u003c\/li\u003e\n\u003cli\u003eIncluded EV6 injector harness and vacuum hose adapters (1\/8”, 1\/4”, and 3\/16” sizes) for seamless installation\u003c\/li\u003e\n\u003cli\u003eCompatible with Holley EFI accessories such as gauges, shift lights, modules, and digital\/pro dashes (Holley P\/N 553-106, 553-111, 553-112)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Terminator X Max EFI Controller is engineered with durability and compactness in mind. Its rugged enclosure protects sensitive electronics from harsh automotive environments while maintaining a small footprint for versatile mounting locations. The integrated sensors and high-quality Bosch wideband O2 sensors ensure reliable, accurate data acquisition critical for precise engine management. The handheld touchscreen interface is designed for ease of use, featuring a responsive LCD that simplifies calibration and real-time monitoring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis EFI controller is designed for straightforward, plug-and-play installation on Chrysler GEN III HEMI engines from 2006 to 2012 equipped with factory Drive-by-Wire throttle bodies (non-VVT). The included EV6 injector harness and vacuum hose adapters facilitate a clean and efficient setup without the need for extensive modifications. The compact ECU size allows for flexible mounting options, but it is important to install the unit with the diagnostic LEDs facing upward for proper operation. The system also supports a wide range of Holley EFI accessories to expand functionality as needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHolley EFI Terminator X Max Gen III HEMI EFI Controller ECU\u003c\/li\u003e\n\u003cli\u003e3.5-inch touchscreen handheld controller with calibration wizard and gauge display\u003c\/li\u003e\n\u003cli\u003eEV6 injector harness compatible with high impedance injectors\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband O2 sensors for accurate air\/fuel ratio measurement\u003c\/li\u003e\n\u003cli\u003eBuilt-in 1 bar MAP sensor with external MAP sensor harness connector\u003c\/li\u003e\n\u003cli\u003eVacuum hose adapters in 1\/8”, 1\/4”, and 3\/16” sizes\u003c\/li\u003e\n\u003cli\u003eComprehensive wiring and installation instructions\u003c\/li\u003e\n\u003cli\u003eFree Holley EFI tuning software for laptop-based advanced tuning\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Holley EFI Terminator X Max is ideal for enthusiasts and professional tuners who demand precise engine management for Chrysler GEN III HEMI engines without variable valve timing. It suits a wide range of applications including naturally aspirated street cars, mild to heavily boosted builds, and nitrous-equipped race vehicles. Whether you are building a budget-friendly daily driver or a high-performance race car, this EFI controller offers the flexibility, reliability, and advanced features needed to optimize power and drivability.\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":47315668664532,"sku":"550-1423","price":2299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/3461_ed176e7da005affdb1b64d6ef902c8e2b2819fc5_fe5e0ab3-bf14-4685-a4af-8921e90fd7ea.webp?v=1766655088","url":"https:\/\/fasthemis.com\/products\/holley-efi-terminator-x-max-2007-2012-gen-iii-hemi-550-1423","provider":"FastHemis","version":"1.0","type":"link"}