{"product_id":"holley-terminator-x-gm-ls1-ls2-ls6-dbc-ev1-w-12-3-in-pro-dash-bluetooth-module-550-903-2","title":"Holley Terminator X, GM LS1\/LS2\/LS6, DBC, EV1, w\/ 12.3 in. Pro Dash \u0026 Bluetooth Module | 550-903-2","description":"\u003cp\u003eThis Holley Terminator X kit provides fuel and spark control for GM LS1\/LS2\/LS6 engines with a 24x crank reluctor, 1x cam and EV1 injectors. The ECU uses real-time fuel learn, high-impedance injector drivers, an integrated 1-bar MAP sensor and 4 programmable inputs and outputs, and it comes loaded with base maps for common engine combinations. Holley packages this version with a 12.3 in. Pro Dash and a Bluetooth module as its display and interface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuilt for GM LS1\/LS2\/LS6 engines with a 24x crank reluctor and 1x cam, using EV1 injectors\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 (low-impedance injectors are not supported)\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband oxygen sensor relays air\/fuel ratio data to the ECU for accurate readings and tuning control\u003c\/li\u003e\n\u003cli\u003eOn-board 1-bar MAP sensor suits naturally aspirated or nitrous combinations; for 2-bar or higher needs Holley recommends GM sensor 12592525 with Holley adapter 558-416\u003c\/li\u003e\n\u003cli\u003eMAP sensor vacuum hose adapters included (1\/8, 1\/4 and 3\/16 in.)\u003c\/li\u003e\n\u003cli\u003e4 programmable inputs (12V, ground, 5V and frequency) for items such as pressure sensors, nitrous activation triggers or a trans brake\u003c\/li\u003e\n\u003cli\u003e4 programmable outputs (ground and PWM) for electric fans, boost control, nitrous control, IAC kits and more\u003c\/li\u003e\n\u003cli\u003eBoost control by time, gear, RPM and speed, with boost safeties\u003c\/li\u003e\n\u003cli\u003eSingle-channel nitrous control, wet or dry, progressive or non-progressive, with rich\/lean safeties and a closed-loop AFR target\u003c\/li\u003e\n\u003cli\u003eAdvanced tables (four 1D, one 1D per-gear, four 2D and one 2D per-gear) for custom strategies such as a flex fuel offset or a fuel or oil pressure safety\u003c\/li\u003e\n\u003cli\u003eOn-board diagnostic LEDs for ECU power, engine run, wideband status, TPS calibration, crank signal and cam signal\u003c\/li\u003e\n\u003cli\u003eCompact ECU mounts almost 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 (Holley P\/Ns 553-106, 553-111 and 553-112)\u003c\/li\u003e\n\u003cli\u003eFree Holley EFI tuning software gives advanced users full laptop access\u003c\/li\u003e\n\u003cli\u003eIncludes 24x LS engine main harness, EV1 injector harness, Terminator X ECU, ECU main power harness, Bosch LSU 4.9 wideband oxygen sensor, input\/output harness and assorted 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\/Cam Reluctor: 24x crank, 1x cam\u003c\/li\u003e\n\u003cli\u003eIgnition Type: GM LS 24x\u003c\/li\u003e\n\u003cli\u003eInjector Connector: Jetronic\/Minitimer (Bosch EV1)\u003c\/li\u003e\n\u003cli\u003eThrottle Control: Drive-by-cable (DBC), no drive-by-wire control\u003c\/li\u003e\n\u003cli\u003eTransmission Control: None\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: 1-bar, internal\u003c\/li\u003e\n\u003cli\u003eDisplay\/Interface: 12.3 in. Pro Dash w\/ Bluetooth Module\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-903-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTerminator X ECUs are designed to be mounted with the diagnostic LEDs facing up.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat engines does the 550-903-2 Terminator X kit fit?\u003c\/h5\u003e\u003cp\u003eGM LS1\/LS2\/LS6 engines with a 24x crank reluctor and 1x cam, using EV1 injectors.\u003c\/p\u003e\u003ch5\u003eDoes it control the transmission?\u003c\/h5\u003e\u003cp\u003eNo. Holley lists this kit without transmission control.\u003c\/p\u003e\u003ch5\u003eIs this a drive-by-wire kit?\u003c\/h5\u003e\u003cp\u003eNo. It is a drive-by-cable (DBC) kit without drive-by-wire throttle control.\u003c\/p\u003e\u003ch5\u003eWhat display comes with the 550-903-2?\u003c\/h5\u003e\u003cp\u003eHolley lists this bundle with a 12.3 in. Pro Dash and a Bluetooth module. The free Terminator X software also allows full laptop tuning.\u003c\/p\u003e\u003ch5\u003eWhat MAP sensor does it use?\u003c\/h5\u003e\u003cp\u003eAn on-board 1-bar MAP sensor, suited to naturally aspirated or nitrous combinations. For 2-bar or higher needs, Holley recommends GM sensor 12592525 with adapter 558-416.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What engines does the 550-903-2 Terminator X kit fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"GM LS1\/LS2\/LS6 engines with a 24x crank reluctor and 1x cam, using EV1 injectors.\"}},{\"@type\":\"Question\",\"name\":\"Does it control the transmission?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Holley lists this kit without transmission control.\"}},{\"@type\":\"Question\",\"name\":\"Is this a drive-by-wire kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is a drive-by-cable (DBC) kit without drive-by-wire throttle control.\"}},{\"@type\":\"Question\",\"name\":\"What display comes with the 550-903-2?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Holley lists this bundle with a 12.3 in. Pro Dash and a Bluetooth module. The free Terminator X software also allows full laptop tuning.\"}},{\"@type\":\"Question\",\"name\":\"What MAP sensor does it use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An on-board 1-bar MAP sensor, suited to naturally aspirated or nitrous combinations. For 2-bar or higher needs, Holley recommends GM sensor 12592525 with adapter 558-416.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":50533186633776,"sku":"GVMR_550-903-2","price":3198.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/550-903-2_01_P04_ANG.jpg?v=1790129569","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-gm-ls1-ls2-ls6-dbc-ev1-w-12-3-in-pro-dash-bluetooth-module-550-903-2","provider":"Berry Performance Sales","version":"1.0","type":"link"}