{"product_id":"holley-terminator-x-max-ford-302-351-460-550-943","title":"Holley Terminator X Max, Ford 302W\/351W\/460, EV1, 4R70W | 550-943","description":"\u003cp\u003eTerminator X Max brings complete standalone engine control to conventional Ford V8 engines like the 302W, 351W, and 460 Big Block, replacing a factory ECU or pre-programmed chip with real-time fuel learn and Holley EFI's race-proven tuning technology. This kit adds 4R70W transmission control and comes fully loaded with base maps for common Ford V8 combinations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-play control for Ford V8 engines such as the 302W, 351W, or 460 Big Block\u003c\/li\u003e\n\u003cli\u003eIncludes Ford-spaced EV1 injector harness and 4R70W (1992-1997) transmission control harness\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 feedback\u003c\/li\u003e\n\u003cli\u003eBuilt-in 1-bar MAP sensor with vacuum hose adapters (1\/8, 1\/4, and 3\/16 in.); can be disabled in favor of an external MAP sensor for boosted applications\u003c\/li\u003e\n\u003cli\u003ePlug-and-play ignition compatible with Dual Sync and HyperSpark distributors (558-323 adapter required for HyperSpark)\u003c\/li\u003e\n\u003cli\u003e4 programmable inputs for extra sensors, nitrous triggers, or a trans brake\u003c\/li\u003e\n\u003cli\u003eBoost control strategies: vs. time, vs. gear, vs. RPM, vs. speed, plus boost safeties\u003c\/li\u003e\n\u003cli\u003eSingle-channel wet or dry progressive nitrous control with rich\/lean safeties\u003c\/li\u003e\n\u003cli\u003eAdvanced tables: 4x 1D, 1x 1D per gear, 4x 2D, 1x 2D per gear for custom tuning needs\u003c\/li\u003e\n\u003cli\u003eOn-board diagnostic LEDs for ECU power, engine run, wideband status, TPS\/crank\/cam signal\u003c\/li\u003e\n\u003cli\u003eIncludes 3.5 in. touchscreen handheld with calibration wizard for building a base tune quickly\u003c\/li\u003e\n\u003cli\u003eCompact ECU mounts virtually anywhere (LEDs must face up)\u003c\/li\u003e\n\u003cli\u003ePlug-and-play compatible with Holley EFI gauges, shift lights, and dash accessories (P\/N 553-106, 553-111, 553-112)\u003c\/li\u003e\n\u003cli\u003eFree EFI tuning software for full laptop control\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInjector Connector: Jetronic\/Minitimer (Ford-spaced EV1)\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: 1-bar, integrated\u003c\/li\u003e\n\u003cli\u003eTransmission Control: 4R70W (1992-1997)\u003c\/li\u003e\n\u003cli\u003eHandheld Included: Yes, 3.5 in. touchscreen\u003c\/li\u003e\n\u003cli\u003eIncludes: Universal MPFI Main Harness, 4R70W Transmission Control Harness, Ford-Spaced EV1 Injector Harness, Terminator X Max ECU, ECU Main Power Harness, Bosch LSU 4.9 Wideband O2 Sensor\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-943\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTerminator X ECUs are designed to be mounted with the LEDs facing up. Not recommended for marine applications, but can be used off-road in a dry, protected, heat-shielded location with proper wiring management.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat engines is the 550-943 Terminator X Max kit designed for?\u003c\/h5\u003e\u003cp\u003eIt's built for conventional Ford V8 engines such as the 302W, 351W, or 460 Big Block.\u003c\/p\u003e\u003ch5\u003eDoes this kit control the transmission?\u003c\/h5\u003e\u003cp\u003eYes, it includes a 4R70W (1992-1997) transmission control harness in addition to engine control.\u003c\/p\u003e\u003ch5\u003eCan I run a HyperSpark distributor with this system?\u003c\/h5\u003e\u003cp\u003eYes, with the 558-323 adapter; Dual Sync distributors are plug-and-play without an adapter.\u003c\/p\u003e\u003ch5\u003eDoes this kit include a handheld for tuning?\u003c\/h5\u003e\u003cp\u003eYes, it includes a 3.5 in. touchscreen handheld with a calibration wizard.\u003c\/p\u003e\u003ch5\u003eCan I run this on a boosted application?\u003c\/h5\u003e\u003cp\u003eYes, the internal MAP sensor can be disabled in favor of an external MAP sensor for boosted combinations.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What engines is the 550-943 Terminator X Max kit designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's built for conventional Ford V8 engines such as the 302W, 351W, or 460 Big Block.\"}},{\"@type\":\"Question\",\"name\":\"Does this kit control the transmission?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, it includes a 4R70W (1992-1997) transmission control harness in addition to engine control.\"}},{\"@type\":\"Question\",\"name\":\"Can I run a HyperSpark distributor with this system?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, with the 558-323 adapter; Dual Sync distributors are plug-and-play without an adapter.\"}},{\"@type\":\"Question\",\"name\":\"Does this kit include a handheld for tuning?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, it includes a 3.5 in. touchscreen handheld with a calibration wizard.\"}},{\"@type\":\"Question\",\"name\":\"Can I run this on a boosted application?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the internal MAP sensor can be disabled in favor of an external MAP sensor for boosted combinations.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418570330160,"sku":"GVMR_550-943","price":1849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/550-94319268.jpg?v=1758384371","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-max-ford-302-351-460-550-943","provider":"Berry Performance Sales","version":"1.0","type":"link"}