{"id":3498,"date":"2026-07-15T14:38:17","date_gmt":"2026-07-15T14:38:17","guid":{"rendered":"https:\/\/titanparthub.com\/?post_type=product&p=3498"},"modified":"2026-07-15T14:38:21","modified_gmt":"2026-07-15T14:38:21","slug":"holley-terminator-x-max-engine-management-systems-550-1318","status":"publish","type":"product","link":"https:\/\/titanparthub.com\/?product=holley-terminator-x-max-engine-management-systems-550-1318","title":{"rendered":"Holley Terminator X MAX Engine Management Systems 550-1318"},"content":{"rendered":"

Overview<\/strong><\/p>\n

\n
Brand: <\/strong>Holley<\/div>\n
Manufacturer\u2019s Part Number: <\/strong>550-1318<\/div>\n
Part Type: <\/strong>Engine Management Systems<\/div>\n
Product Line: <\/strong>Holley Terminator X MAX Engine Management Systems<\/div>\n
Summit Racing Part Number: <\/strong>HLY-550-1318<\/div>\n
UPC: <\/strong>090127087107<\/div>\n
Transmission Controller Included: <\/strong>Yes<\/div>\n
High Impedence Injectors: <\/strong>Up to 8<\/div>\n
Coils: <\/strong>Up to 8<\/div>\n
Analog Inputs: <\/strong>4<\/div>\n
Wideband Controller: <\/strong>Yes<\/div>\n
Wideband Channels: <\/strong>1<\/div>\n
CANBUS Enabled: <\/strong>Yes<\/div>\n
CANBUS Networks: <\/strong>1<\/div>\n
Knock Control: <\/strong>Yes<\/div>\n
Knock Channels: <\/strong>2<\/div>\n
Drive-By-Wire Capable: <\/strong>Yes<\/div>\n
Drive-By-Wire Channels: <\/strong>1<\/div>\n
VVT Control: <\/strong>No<\/div>\n
Boost Control: <\/strong>Yes<\/div>\n
Nitrous Control: <\/strong>Yes<\/div>\n
Traction Control: <\/strong>No<\/div>\n
Launch Control: <\/strong>No<\/div>\n
Engine Protection: <\/strong>Yes<\/div>\n
Flex Fuel Compatible: <\/strong>No<\/div>\n
Multi-fuel Capable: <\/strong>No<\/div>\n
Data Logger: <\/strong>No<\/div>\n
Oxygen Sensor Included: <\/strong>Yes<\/div>\n
Display Included: <\/strong>Yes<\/div>\n
Handheld Controller Included: <\/strong>Yes<\/div>\n
Remanufactured: <\/strong>No<\/div>\n
Quantity: <\/strong>Sold as a kit.<\/div>\n
Notes: <\/strong>Includes 3.5 inch display. Cannot program through EFI Standalone Digital Dash Kits.<\/div>\n
Special Attention: <\/strong>For use with 4 valve engines with stock coil-on-plug or aftermarket smart coils. For use with EV1 injectors.<\/div>\n<\/p><\/div>\n

Holley Terminator X MAX Engine Management Systems<\/strong><\/p>\n

Holley Terminator X MAX engine management systems let you take control of your domestic V8 engine. They give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI\u2014all at a budget-friendly price! Every MPFI Terminator X MAX features real-time fuel learn, high-impedance injector drivers, an integrated one-bar MAP sensor\u2014and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Also, Holley offers the X MAX systems with either or both drive-by-wire (DBW) throttle body control or transmission control. All kits come fully loaded with base maps for common domestic V8 engine combinations to get you out of the garage and onto the road or track fast. Order the model recommended for your vehicle application.<\/p>\n

Features include:<\/p>\n

* Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users
* Real-time fuel map learn\u2014takes the guesswork out of tuning your base fuel table
* High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors (will not control low-impedance injectors)
* Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control
* On-board one-bar MAP sensor is perfect for N\/A or nitrous engine combos
* MAP sensor vacuum hose adapters
* 4 inputs: 12 V, ground, 5 V, and frequency
* 4 outputs: Ground, PWM, and for accessories
* Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties
* Nitrous control: single channel of wet or dry, progressive or non-progressive, rich\/lean safeties, and target closed loop AFR; adjustable through touch screen
* Advanced tables can be used for any custom tables
* On-board diagnostic LEDs allow you to identify any critical engine issues at a glance
* The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up!
* Plug-and-play compatible with more Holley EFI accessories
* Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most V8 engines, as well as tuning and gauge display functions<\/p>\n","protected":false},"excerpt":{"rendered":"

Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Plug-and-Play, Drive-by-Wire, Tuner\/Trans Control, 4R70W, Ford, 4.6L, 5.4L, Kit<\/p>\n","protected":false},"featured_media":3101,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[164],"product_tag":[],"class_list":["post-3498","product","type-product","status-publish","has-post-thumbnail","product_cat-ignitions-electrical","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","purchasable","product-type-simple"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/titanparthub.com\/index.php?rest_route=\/wp\/v2\/product\/3498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/titanparthub.com\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/titanparthub.com\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/titanparthub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/titanparthub.com\/index.php?rest_route=\/wp\/v2\/media\/3101"}],"wp:attachment":[{"href":"https:\/\/titanparthub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3498"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/titanparthub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=3498"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/titanparthub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=3498"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/titanparthub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=3498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}