{"product_id":"holley-terminator-x-max-universal-mpfi-550-942","title":"Holley Terminator X Max, Universal V8, EV1, 4L60E\/4L80E | 550-942","description":"\u003cp\u003eTerminator X Max brings complete engine control to any V8 with a universal MPFI harness, replacing a factory ECU's cumbersome tuning interface with real-time fuel learn, self-learning fuel strategies, and Holley's proven EFI tuning technology, plus GM 4L60E\/4L80E transmission control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUniversal MPFI main harness for common V8 engine combinations\u003c\/li\u003e\n\u003cli\u003eGM 4L60E\/4L80E transmission control included\u003c\/li\u003e\n\u003cli\u003eEV1-style injector connectors\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 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\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\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\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine\/Platform: Universal — fits common V8 engine combinations via a universal MPFI main harness, not a specific factory\/LS-style harness\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Universal\u003c\/li\u003e\n\u003cli\u003eInjector Connector: Jetronic\/Minitimer (Bosch EV1)\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: 1-bar\u003c\/li\u003e\n\u003cli\u003eTransmission Control: 4L60E\/4L80E\u003c\/li\u003e\n\u003cli\u003eHandheld Included: Yes, 3.5 in. touchscreen\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-942\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot compatible with 4L6X transmissions from model year 1995 or earlier due to converter lockup and downshift strategy changes. 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 kind of engine is 550-942 designed for?\u003c\/h5\u003e\u003cp\u003eIt's a universal MPFI kit built for common V8 engine combinations, not a specific factory harness like the LS-specific Terminator X Max kits.\u003c\/p\u003e\u003ch5\u003eDoes it include transmission control?\u003c\/h5\u003e\u003cp\u003eYes, GM 4L60E\/4L80E transmission control is included.\u003c\/p\u003e\u003ch5\u003eIs a handheld tuner included?\u003c\/h5\u003e\u003cp\u003eYes, a 3.5 in. touchscreen handheld with a calibration wizard.\u003c\/p\u003e\u003ch5\u003eWhat injector connector does it use?\u003c\/h5\u003e\u003cp\u003eJetronic\/Minitimer (Bosch EV1) style connectors.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What kind of engine is 550-942 designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's a universal MPFI kit built for common V8 engine combinations, not a specific factory harness like the LS-specific Terminator X Max kits.\"}},{\"@type\":\"Question\",\"name\":\"Does it include transmission control?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, GM 4L60E\/4L80E transmission control is included.\"}},{\"@type\":\"Question\",\"name\":\"Is a handheld tuner included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, a 3.5 in. touchscreen handheld with a calibration wizard.\"}},{\"@type\":\"Question\",\"name\":\"What injector connector does it use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Jetronic\/Minitimer (Bosch EV1) style connectors.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418574721072,"sku":"GVMR_550-942","price":1849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/550-94219268.jpg?v=1758384750","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-max-universal-mpfi-550-942","provider":"Berry Performance Sales","version":"1.0","type":"link"}