{"product_id":"fueltech-ft550-4-cylinder-universal-b-harness","title":"FuelTech FT550 4 Cylinder Universal B Expansion Harness","description":"\u003cp\u003eThe B expansion harness plugs into the FT550's B connector and works alongside the 4 Cylinder Universal A Harness. It adds four more injector outputs for up to eight injectors staged sequentially, a direct GearController sensor connection, CAN B and extra inputs and outputs. Buy it alone if you already have the A harness, or as an A and B set.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFT550 B connector\u003c\/li\u003e\n\u003cli\u003e4 additional EV1 injector connectors (high impedance only) for 8 staged sequential injectors\u003c\/li\u003e\n\u003cli\u003eFT CAN B connector\u003c\/li\u003e\n\u003cli\u003eGearController sensor connector\u003c\/li\u003e\n\u003cli\u003eExtra INPUTS connector for up to 5 more input channels, mating kit included\u003c\/li\u003e\n\u003cli\u003eExtra OUTPUTS connector for up to 8 more outputs, mating kit included\u003c\/li\u003e\n\u003cli\u003eRelay with fuse for the added injectors\u003c\/li\u003e\n\u003cli\u003eLabeled connectors; heat, moisture and oil resistant insulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eB Expansion Harness\u003c\/strong\u003e: B harness only, for cars that already have the 4 Cylinder Universal A Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e(A \u0026amp; B) Harnesses\u003c\/strong\u003e: the FT450\/550 4 Cylinder Universal A Harness plus the B expansion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFT550 ECU only. The B harness must be used together with the FT450\/550 4 Cylinder Universal A Harness.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eExtra inputs suit driveshaft RPM, transbrake button, suspension travel, input shaft RPM or a staging button. Extra outputs suit boost control solenoids, transbrake solenoid, dump and lockup valves, gear shift and nitrous stages.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Ingles\/4_cylinder_Harness.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech FT450\/FT550 4 cylinder universal harness manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the B expansion harness work with the FT450?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is only compatible with the FT550 and must be used along with the FT450\/550 4 Cylinder Universal A Harness.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between the two options?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The B Expansion option is the B harness only. The (A and B) option includes both the 4 Cylinder Universal A Harness and the B expansion.\"}},{\"@type\":\"Question\",\"name\":\"Can I use low impedance injectors on the extra injector outputs?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The four additional injector connectors are for high impedance injectors only.\"}},{\"@type\":\"Question\",\"name\":\"How many injectors can I run with A and B?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Up to 8 injectors staged sequentially on a 4 cylinder.\"}},{\"@type\":\"Question\",\"name\":\"What extra I\/O does it add?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An INPUTS connector for up to 5 more input channels and an OUTPUTS connector for up to 8 more outputs, each with a mating connector kit, plus CAN B and a GearController sensor connector.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"FT550 4 Cylinder Universal B Expansion Harness","offer_id":50629708316889,"sku":"2002006600","price":279.0,"currency_code":"USD","in_stock":true},{"title":"FT550 4 Cylinder Universal (A \u0026 B) Harnesses","offer_id":50629708349657,"sku":"2002006505 \/ 2002006600","price":878.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT5504CylinderUniversalB.png?v=1791474239","url":"https:\/\/www.autosportsengineering.com\/products\/fueltech-ft550-4-cylinder-universal-b-harness","provider":"Autosports engineering","version":"1.0","type":"link"}