{"product_id":"holley-terminator-x-stealth-4500-universal-550-1070","title":"Holley Terminator X Stealth 4500, Universal | 550-1070","description":"\u003cp\u003eThe Terminator X Stealth 4500 EFI system bolts on as a carburetor replacement and features eight 100 lb\/hr fuel injectors capable of supporting up to 1,500 HP naturally aspirated or 1,250 HP on forced induction. It's designed to fit Gen 3 Ultra Dominator air cleaners and fuel crossovers, making it easy to convert a 4500-equipped 800+ horsepower dragster or door car to EFI.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBolt-on 4500 flange carburetor replacement\u003c\/li\u003e\n\u003cli\u003eSupports up to 1,500 HP naturally aspirated or 1,250 HP forced induction with eight 100 lb\/hr injectors\u003c\/li\u003e\n\u003cli\u003e2.125 in. throttle plates flowing 1,440 CFM for large cubic inch engines\u003c\/li\u003e\n\u003cli\u003eGen 3 Ultra Dominator-style 4-bolt air cleaner flange for a variety of air cleaner options\u003c\/li\u003e\n\u003cli\u003eRequires an external fuel pressure regulator (such as Holley 12-848)\u003c\/li\u003e\n\u003cli\u003eIntegrated ignition timing control\u003c\/li\u003e\n\u003cli\u003eHigh-resolution full color touchscreen handheld for setup, tuning, and gauge displays\u003c\/li\u003e\n\u003cli\u003eSimple calibration wizard builds a base map from basic engine questions — no laptop required\u003c\/li\u003e\n\u003cli\u003eOEM-style TPS\/IAC for long-term reliability\u003c\/li\u003e\n\u003cli\u003eIncluded weld-in O2 sensor bung for a leak-free oxygen sensor install\u003c\/li\u003e\n\u003cli\u003eBuilt-in 1bar MAP sensor with included vacuum hose adapters (1\/8, 1\/4, and 3\/16 in.)\u003c\/li\u003e\n\u003cli\u003eInternal MAP sensor can be disabled for boosted applications in favor of an external MAP sensor (terminated connector included)\u003c\/li\u003e\n\u003cli\u003ePlug-and-play compatible with Holley EFI gauges, shift lights, modules, and digital\/pro dashes (553-106, 553-111, 553-112)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFlange Size\/Style: 4500 Dominator\u003c\/li\u003e\n\u003cli\u003eCFM: 1,440\u003c\/li\u003e\n\u003cli\u003eThrottle Bore: 2.125 in.\u003c\/li\u003e\n\u003cli\u003eInjector Size: 100 lb\/hr @ 58.5 PSI\u003c\/li\u003e\n\u003cli\u003eInlet\/Outlet Size: 8 AN\u003c\/li\u003e\n\u003cli\u003eFuel Pressure: 58.5 PSI\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: 1 bar (internal, with external option)\u003c\/li\u003e\n\u003cli\u003eMax Horsepower Rating: 1,500\u003c\/li\u003e\n\u003cli\u003eHandheld Included: Yes\u003c\/li\u003e\n\u003cli\u003eIgnition Type: Universal\u003c\/li\u003e\n\u003cli\u003eFinish: Shiny\u003c\/li\u003e\n\u003cli\u003ePart Number: 550-1070\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRequires an external fuel pressure regulator (such as Holley 12-848) set to a base pressure of 58.5 PSI.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eHow much horsepower can this system support?\u003c\/h5\u003e\u003cp\u003eUp to 1,500 HP naturally aspirated or 1,250 HP on forced induction, using the included eight 100 lb\/hr injectors.\u003c\/p\u003e\u003ch5\u003eWhat flange does this system use?\u003c\/h5\u003e\u003cp\u003eA 4500 Dominator flange with 2.125 in. throttle plates flowing 1,440 CFM.\u003c\/p\u003e\u003ch5\u003eDoes it fit Gen 3 Ultra Dominator air cleaners?\u003c\/h5\u003e\u003cp\u003eYes, the air cleaner flange is designed to fit Gen 3 Ultra Dominator-style air cleaners and fuel crossovers.\u003c\/p\u003e\u003ch5\u003eDo I need an external fuel pressure regulator?\u003c\/h5\u003e\u003cp\u003eYes, an external regulator set to 58.5 PSI base pressure is required, such as Holley part 12-848.\u003c\/p\u003e\u003ch5\u003eCan I run an external MAP sensor instead of the internal one?\u003c\/h5\u003e\u003cp\u003eYes, the internal 1bar MAP sensor can be disabled for boosted applications in favor of an external sensor; the harness includes a terminated connector.\u003c\/p\u003e\u003ch5\u003eDoes it include a handheld tuner?\u003c\/h5\u003e\u003cp\u003eYes, a high-resolution full color touchscreen handheld is included for setup, tuning, and gauge displays.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How much horsepower can this system support?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Up to 1,500 HP naturally aspirated or 1,250 HP on forced induction, using the included eight 100 lb\/hr injectors.\"}},{\"@type\":\"Question\",\"name\":\"What flange does this system use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 4500 Dominator flange with 2.125 in. throttle plates flowing 1,440 CFM.\"}},{\"@type\":\"Question\",\"name\":\"Does it fit Gen 3 Ultra Dominator air cleaners?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the air cleaner flange is designed to fit Gen 3 Ultra Dominator-style air cleaners and fuel crossovers.\"}},{\"@type\":\"Question\",\"name\":\"Do I need an external fuel pressure regulator?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, an external regulator set to 58.5 PSI base pressure is required, such as Holley part 12-848.\"}},{\"@type\":\"Question\",\"name\":\"Can I run an external MAP sensor instead of the internal one?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the internal 1bar MAP sensor can be disabled for boosted applications in favor of an external sensor; the harness includes a terminated connector.\"}},{\"@type\":\"Question\",\"name\":\"Does it include a handheld tuner?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, a high-resolution full color touchscreen handheld is included for setup, tuning, and gauge displays.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418589499440,"sku":"GVMR_550-1070","price":2849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/4500defaultshiny.jpg?v=1758385937","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-stealth-4500-universal-550-1070","provider":"Berry Performance Sales","version":"1.0","type":"link"}