{"product_id":"holley-terminator-x-max-gen-iii-truck-550-917","title":"Holley Terminator X Max, GM Gen III 4.8\/5.3\/6.0 Truck, DBC, Multec 2, 4L60E\/4L80E | 550-917","description":"\u003cp\u003eTerminator X Max puts complete control of a GM LS Gen III 4.8\/5.3\/6.0 truck engine in one compact, throttle-body-mounted ECU. It replaces a cumbersome junkyard controller with real-time fuel learn, self-learning fuel strategies, and Holley's proven EFI tuning technology at a budget-friendly price, plus 4L60E\/4L80E transmission control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuilt for GM LS 4.8\/5.3\/6.0 truck engines with 24x crank reluctor, Multec 2 injectors, and 4L60E\/4L80E transmission control\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 and Holley EFI injectors\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband oxygen sensor included for accurate AFR reading and tuning control\u003c\/li\u003e\n\u003cli\u003eOn-board 1-bar MAP sensor, ideal for N\/A or nitrous combinations\u003c\/li\u003e\n\u003cli\u003e4 programmable inputs (12V, ground, 5V, frequency) and 4 programmable outputs (ground, PWM) for fans, boost control, nitrous, and more\u003c\/li\u003e\n\u003cli\u003eBoost control: boost vs. time, gear, RPM, and 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 custom tables for flex-fuel offset, fuel\/oil pressure safeties, and more\u003c\/li\u003e\n\u003cli\u003eOn-board diagnostic LEDs for ECU power, engine run, wideband status, TPS calibration, crank and cam signal\u003c\/li\u003e\n\u003cli\u003e3.5 in. touchscreen handheld with calibration wizard, internal data logging, and customizable gauge display\u003c\/li\u003e\n\u003cli\u003eCompact ECU mounts virtually anywhere (diagnostic LEDs must face up)\u003c\/li\u003e\n\u003cli\u003ePlug-and-play compatible with Holley EFI gauges, shift lights, modules, and digital\/pro dashes\u003c\/li\u003e\n\u003cli\u003eFree EFI tuning software for full laptop access\u003c\/li\u003e\n\u003cli\u003eIncludes 24x LS main harness, Multec 2 injector harness, 4L60E\/4L80E transmission control harness, ECU, main power harness, wideband oxygen sensor, I\/O harness, and vacuum adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine: Gen III GM Truck (4.8\/5.3\/6.0)\u003c\/li\u003e\n\u003cli\u003eCrank Reluctor: 24x\u003c\/li\u003e\n\u003cli\u003eIgnition Type: GM LS 24x\u003c\/li\u003e\n\u003cli\u003eInjector Connector: Multec 2\u003c\/li\u003e\n\u003cli\u003eDrive-By-Wire: No\u003c\/li\u003e\n\u003cli\u003eTransmission Control: 4L60E\/4L80E\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: 1-bar\u003c\/li\u003e\n\u003cli\u003eHandheld Included: Yes, 3.5 in. touchscreen\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-917\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot recommended for 4x4 applications with electronic transfer cases, or for 4L6X transmissions from model year 1995 or earlier. Not intended for marine use, though it can be used off-road with proper mounting and wiring protection.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat engines does the 550-917 Terminator X Max fit?\u003c\/h5\u003e\u003cp\u003eGM LS Gen III 4.8\/5.3\/6.0 truck engines with a 24x crank reluctor and Multec 2 injectors.\u003c\/p\u003e\u003ch5\u003eDoes it control the transmission?\u003c\/h5\u003e\u003cp\u003eYes, it includes 4L60E\/4L80E transmission control.\u003c\/p\u003e\u003ch5\u003eIs a handheld tuner included?\u003c\/h5\u003e\u003cp\u003eYes, a 3.5 in. touchscreen handheld with a calibration wizard, data logging, and customizable gauges is included.\u003c\/p\u003e\u003ch5\u003eCan this be used on a 4x4 truck?\u003c\/h5\u003e\u003cp\u003eIt's not recommended for 4x4 applications with electronic transfer cases.\u003c\/p\u003e\u003ch5\u003eWhat MAP sensor does it use?\u003c\/h5\u003e\u003cp\u003eAn on-board 1-bar MAP sensor, ideal for naturally aspirated or nitrous combinations.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What engines does the 550-917 Terminator X Max fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"GM LS Gen III 4.8\/5.3\/6.0 truck engines with a 24x crank reluctor and Multec 2 injectors.\"}},{\"@type\":\"Question\",\"name\":\"Does it control the transmission?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, it includes 4L60E\/4L80E transmission control.\"}},{\"@type\":\"Question\",\"name\":\"Is a handheld tuner included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, a 3.5 in. touchscreen handheld with a calibration wizard, data logging, and customizable gauges is included.\"}},{\"@type\":\"Question\",\"name\":\"Can this be used on a 4x4 truck?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's not recommended for 4x4 applications with electronic transfer cases.\"}},{\"@type\":\"Question\",\"name\":\"What MAP sensor does it use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An on-board 1-bar MAP sensor, ideal for naturally aspirated or nitrous combinations.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418574196784,"sku":"GVMR_550-917","price":1849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/1b87247376c8bb4942c39145e742ee40744b720a.jpg?v=1758384695","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-max-gen-iii-truck-550-917","provider":"Berry Performance Sales","version":"1.0","type":"link"}