{"product_id":"holley-terminator-x-max-ls1-ls2-ls6-550-919t","title":"Holley Terminator X Max, GM LS1\/LS2\/LS6, DBC, EV6, 4L60E\/4L80E | 550-919T","description":"\u003cp\u003eTerminator X Max puts complete control of a GM LS1\/LS6 engine in one compact ECU, replacing a junkyard controller with real-time fuel learn, self-learning fuel strategies, and Holley's proven EFI tuning technology, plus 4L60E\/4L80E transmission control. This kit includes a USB\/CAN tuning cable in place of the 3.5 in. handheld and uses 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\u003eBuilt for GM LS1\/LS6 engines with 24x crank reluctor, EV6 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 and 4 programmable outputs for fans, boost control, nitrous, and more\u003c\/li\u003e\n\u003cli\u003eBoost control and nitrous control tables, plus advanced custom tables\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\u003eIncludes USB\/CAN tuning cable for real-time configuration and tuning via laptop\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, EV6 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: GM LS1\/LS2\/LS6\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: USCAR (EV6)\u003c\/li\u003e\n\u003cli\u003eDrive-By-Wire: No\u003c\/li\u003e\n\u003cli\u003eTransmission Control: 4L60E\/4L80E\u003c\/li\u003e\n\u003cli\u003eHandheld Included: No — USB\/CAN tuning cable instead\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-919T\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's the difference between 550-919T and 550-919?\u003c\/h5\u003e\u003cp\u003e550-919T uses a USB\/CAN tuning cable and the free Terminator X software instead of the 3.5 in. touchscreen handheld included with 550-919.\u003c\/p\u003e\u003ch5\u003eWhat engines does it fit?\u003c\/h5\u003e\u003cp\u003eGM LS1\/LS6 engines with a 24x crank reluctor and EV6 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\u003eCan this be used on a 4x4 vehicle?\u003c\/h5\u003e\u003cp\u003eIt's not recommended for 4x4 applications with electronic transfer cases.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What's the difference between 550-919T and 550-919?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"550-919T uses a USB\/CAN tuning cable and the free Terminator X software instead of the 3.5 in. touchscreen handheld included with 550-919.\"}},{\"@type\":\"Question\",\"name\":\"What engines does it fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"GM LS1\/LS6 engines with a 24x crank reluctor and EV6 injectors.\"}},{\"@type\":\"Question\",\"name\":\"Does it control the transmission?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, it includes 4L60E\/4L80E transmission control.\"}},{\"@type\":\"Question\",\"name\":\"Can this be used on a 4x4 vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's not recommended for 4x4 applications with electronic transfer cases.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418574491696,"sku":"GVMR_550-919T","price":1789.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/term-x-max-w-tuner-cable19277_c595d6a9-d97e-4deb-a7ab-12f971d46241.jpg?v=1758384726","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-max-ls1-ls2-ls6-550-919t","provider":"Berry Performance Sales","version":"1.0","type":"link"}