{"product_id":"holley-terminator-x-max-gm-ls-truck-550-928t","title":"Holley Terminator X Max, GM Gen IV 4.8\/5.3\/6.0 Truck \u0026 LS2\/LS3, DBW, EV6, 4L60E\/4L80E | 550-928T","description":"\u003cp\u003eTake control of an LS engine with Terminator X Max, a self-learning standalone EFI system that delivers Holley EFI's proven, race-winning technology at a budget-friendly price. Real-time fuel learn, high-impedance injector drivers, an integrated 1-bar MAP sensor, and four programmable inputs and outputs make it easy to add electric fans, boost control, progressive nitrous, and more. This kit adds 4L60E\/4L80E transmission control and drive-by-wire throttle body control, and it comes fully loaded with base maps for common LS combinations. It ships with a USB\/CAN tuning cable instead of a handheld, and requires the free Terminator X Software for setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned for GM LS 4.8\/5.3\/6.0 truck engines and LS2\/LS3 with 58x crank, 4x cam, and 4L60E\/4L80E transmissions\u003c\/li\u003e\n\u003cli\u003eDrive-by-wire throttle body control and EV6 injector compatibility\u003c\/li\u003e\n\u003cli\u003eReal-time fuel map learn takes the guesswork out of tuning the base fuel table\u003c\/li\u003e\n\u003cli\u003eHigh-impedance injector drivers safely power most stock LS injectors and Holley EFI injectors\u003c\/li\u003e\n\u003cli\u003eOnboard Bosch LSU 4.9 wideband O2 sensor for accurate AFR reading and precise tuning\u003c\/li\u003e\n\u003cli\u003eOnboard 1-bar MAP sensor, ideal for N\/A or nitrous combinations (2+ bar MAP requires GM 12592525 and adapter 558-416)\u003c\/li\u003e\n\u003cli\u003eIncludes MAP sensor vacuum hose adapters (1\/8\", 1\/4\", 3\/16\")\u003c\/li\u003e\n\u003cli\u003e4 inputs (12V, ground, 5V, frequency) for extra sensors or activation triggers\u003c\/li\u003e\n\u003cli\u003e4 outputs (ground, PWM-) for fans, boost control, nitrous control, IAC kit, and more\u003c\/li\u003e\n\u003cli\u003eBoost control: boost vs. time, gear, RPM, speed, plus boost safeties\u003c\/li\u003e\n\u003cli\u003eNitrous control: single channel wet or dry, progressive or non-progressive, with rich\/lean safeties\u003c\/li\u003e\n\u003cli\u003eAdvanced tables: 4x 1D tables, 1x 1D-per-gear table, 4x 2D tables, 1x 2D-per-gear table for custom uses like flex fuel offset or fuel\/oil pressure safeties\u003c\/li\u003e\n\u003cli\u003eOnboard diagnostic LEDs for ECU power, engine run, wideband status, TPS calibration, crank signal, and cam signal\u003c\/li\u003e\n\u003cli\u003eIncludes USB\/CAN tuning cable for real-time configuration and tuning\u003c\/li\u003e\n\u003cli\u003eCompact ECU mounts virtually anywhere\u003c\/li\u003e\n\u003cli\u003ePlug-and-play compatible with Holley EFI gauges, shift lights, and digital\/pro dashes (553-106, 553-111, 553-112)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine: Gen IV GM LS 4.8\/5.3\/6.0 Truck, LS2\/LS3\u003c\/li\u003e\n\u003cli\u003eCrank Reluctor: 58x\u003c\/li\u003e\n\u003cli\u003eIgnition Type: GM LS 58x\u003c\/li\u003e\n\u003cli\u003eInjector Connector: USCAR (EV6)\u003c\/li\u003e\n\u003cli\u003eDrive-By-Wire: Yes\u003c\/li\u003e\n\u003cli\u003eTransmission Control: 4L60E\/4L80E\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: 1-Bar (onboard)\u003c\/li\u003e\n\u003cli\u003ePerformance Handheld Included: No (USB\/CAN tuning cable included instead)\u003c\/li\u003e\n\u003cli\u003eControl Options: Fuel, Spark, Drive-by-Wire, Transmission\u003c\/li\u003e\n\u003cli\u003eIncludes: 58x\/4x LS main harness, EV6 injector harness, DBW throttle body harness, 4L60E\/4L80E transmission control harness, Terminator X MAX ECU, ECU main power harness, Bosch LSU 4.9 wideband oxygen sensor, I\/O harness\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-928T\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot recommended for 4x4 applications with electronic transfer cases, and not compatible with 4L6X transmissions from model year 1995 or earlier due to year-by-year converter lockup and downshift strategy changes. The ECU is not recommended for marine use, but can be used in off-road applications if mounted in a safe, dry, heat-protected location with proper wiring management.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat engines is Terminator X Max 550-928T designed for?\u003c\/h5\u003e\u003cp\u003eIt's built for Gen IV GM LS 4.8\/5.3\/6.0 truck engines and LS2\/LS3 engines with a 58x crank and 4x cam.\u003c\/p\u003e\u003ch5\u003eDoes this kit control the transmission and throttle body?\u003c\/h5\u003e\u003cp\u003eYes, this kit includes 4L60E\/4L80E transmission control and drive-by-wire throttle body control.\u003c\/p\u003e\u003ch5\u003eDoes it come with a handheld tuner?\u003c\/h5\u003e\u003cp\u003eNo, this kit includes a USB\/CAN tuning cable instead of the 3.5\" handheld, and requires the free Terminator X Software for setup.\u003c\/p\u003e\u003ch5\u003eWhat MAP sensor does it use?\u003c\/h5\u003e\u003cp\u003eIt has an onboard 1-bar MAP sensor, suited to naturally aspirated or nitrous combinations; boosted applications above 1 bar require a separate 2+ bar sensor and adapter.\u003c\/p\u003e\u003ch5\u003eIs this ECU suitable for 4x4 trucks?\u003c\/h5\u003e\u003cp\u003eIt's not recommended for 4x4 applications with electronic transfer cases.\u003c\/p\u003e\u003ch5\u003eCan this ECU be used in a marine or off-road application?\u003c\/h5\u003e\u003cp\u003eIt's not recommended for marine use, but can be used off-road if mounted in a safe, dry, heat-protected location with proper wiring management.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What engines is Terminator X Max 550-928T designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's built for Gen IV GM LS 4.8\/5.3\/6.0 truck engines and LS2\/LS3 engines with a 58x crank and 4x cam.\"}},{\"@type\":\"Question\",\"name\":\"Does this kit control the transmission and throttle body?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, this kit includes 4L60E\/4L80E transmission control and drive-by-wire throttle body control.\"}},{\"@type\":\"Question\",\"name\":\"Does it come with a handheld tuner?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this kit includes a USB\/CAN tuning cable instead of the 3.5-inch handheld, and requires the free Terminator X Software for setup.\"}},{\"@type\":\"Question\",\"name\":\"What MAP sensor does it use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It has an onboard 1-bar MAP sensor, suited to naturally aspirated or nitrous combinations; boosted applications above 1 bar require a separate 2+ bar sensor and adapter.\"}},{\"@type\":\"Question\",\"name\":\"Is this ECU suitable for 4x4 trucks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's not recommended for 4x4 applications with electronic transfer cases.\"}},{\"@type\":\"Question\",\"name\":\"Can this ECU be used in a marine or off-road application?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's not recommended for marine use, but can be used off-road if mounted in a safe, dry, heat-protected location with proper wiring management.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418611191856,"sku":"GVMR_550-928T","price":1989.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/term-x-max-w-tuner-cable19277_77361766-5c30-47de-adeb-42223ce3b57b.jpg?v=1758387403","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-max-gm-ls-truck-550-928t","provider":"Berry Performance Sales","version":"1.0","type":"link"}