{"product_id":"fuelit-pi-kit-s58","title":"Fuel-It! Port Injection Kit — S58 (G8x M3\/M4, G87 M2, X3 M \/ X4 M)","description":"\u003cp\u003e\u003cstrong\u003eFuel-It! port injection kit for the S58 — the G8x M3\/M4 (including M3 Touring and M4 Convertible), G87 M2, and F97 X3 M \/ F98 X4 M.\u003c\/strong\u003e Low-pressure port injection across all six intake runners, backing up the S58's direct injection for big power on pump, race gas, or E85 (Fuel-It rates the kit up to 1,000+ whp with the right injectors).\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA Fuel-It S58 billet fuel rail, up to six flow-matched port injectors (sized to your choice), stainless-braided lines, a port-injection controller, and the install hardware\/jig. It supplements the factory DI; injector size sets the power ceiling.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eThree choices in the configurator. \u003cstrong\u003eInjector:\u003c\/strong\u003e No injectors (rail and hardware only, to carry over your own set), or 550, 750, 950, or 1050cc — size it to your power target. \u003cstrong\u003eController:\u003c\/strong\u003e Standard fires the port injectors as a batched bank; CANfuel Sequential is Fuel-It's CAN-bus controller that fires each injector in sequence with the engine for finer fuel control. \u003cstrong\u003eFlex-Fuel:\u003c\/strong\u003e None, reuse your existing flex-fuel sensor, or add a new sensor.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eSupplemental fuel for high-power S58 builds. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS58 — G80 M3, G81 M3 Touring, G82 M4, G83 M4 Convertible, G87 M2, F97 X3 M, F98 X4 M. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-s58\"\u003eFueling Kit — S58\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Fuel-It!","offers":[{"title":"No injectors \/ Standard \/ None","offer_id":43280675045437,"sku":"FI-PI-S58","price":1995.0,"currency_code":"USD","in_stock":true},{"title":"No injectors \/ Standard \/ Reuse existing sensor","offer_id":43280675078205,"sku":"FI-PI-S58-FLEXR","price":2094.0,"currency_code":"USD","in_stock":true},{"title":"No injectors \/ Standard \/ New sensor","offer_id":43280675110973,"sku":"FI-PI-S58-FLEXN","price":2424.0,"currency_code":"USD","in_stock":true},{"title":"No injectors \/ CANfuel Sequential \/ None","offer_id":43280675143741,"sku":"FI-PI-S58-SEQ","price":2494.0,"currency_code":"USD","in_stock":true},{"title":"No injectors \/ CANfuel Sequential \/ Reuse existing 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