{"product_id":"precision-raceworks-stand-alone-auxiliary-fuel-system-afs-for-bmw-x3-m-f97-x4-m-f98-x3-m40i-g01-x4-m40i-g02-2018-2024","title":"Precision Raceworks Stand Alone Auxiliary Fuel System (AFS) for BMW X3 M F97 \/ X4 M F98 \/ X3 M40i G01 \/ X4 M40i G02 (2018–2024)","description":"\u003cstyle\u003e\n.es-years-header, .es-years-cell { display: table-cell; }\n.es-years-mobile { display: none; }\n@media (max-width: 620px) {\n  .es-years-header, .es-years-cell { display: none !important; }\n  .es-years-mobile { display: block !important; font-size: 13px; color: #666; margin-top: 3px; }\n}\n\u003c\/style\u003e\n\n\u003cdiv style=\"max-width: 920px; margin: 0 auto; font-family: Arial, sans-serif; color: #1f1f1f;\"\u003e\n\n\u003cp style=\"font-size: 18px; line-height: 1.7; margin-bottom: 18px;\"\u003e\n  The \u003cstrong style=\"color:#0070f3;\"\u003ePrecision Raceworks Stand Alone AFS\u003c\/strong\u003e gives the X3 M, X4 M, X3 M40i and X4 M40i a dedicated low pressure fuel system for port injection, built for big-power S58 and B58 builds.\n\u003c\/p\u003e\n\n\u003cp style=\"font-size: 18px; line-height: 1.7; margin-bottom: 28px;\"\u003e\n  Because the factory controller throttles the main pump whenever it sees more than its target pressure, upgraded pumps on the shared system are always being reined in. The AFS gives your port injection its own pump, lines, filter and a 1:1 boost-referenced billet regulator, so port fuel pressure stays rock solid while the direct injection system is left alone. Available as the AFS.460, AFS.640 or AFS.800 pump configuration.\n\u003c\/p\u003e\n\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 20px;\"\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; margin-bottom: 30px;\"\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eDEDICATED PORT FUEL SUPPLY\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eA \u003cstrong\u003eseparate in-tank pump\u003c\/strong\u003e feeds only the port injectors, so the factory DI system never fights an upgraded pump.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eSTABLE RAIL PRESSURE\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003e\u003cstrong\u003e1:1 boost-referenced\u003c\/strong\u003e billet regulator holds port fuel pressure steady at every boost level.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eBILLET TOP HAT\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eAnodized \u003cstrong\u003ebillet aluminum top hat\u003c\/strong\u003e with three high-flow ports and sealed electrical pass-throughs.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eE85-READY FILTRATION\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eUSA-made \u003cstrong\u003e10 micron micro-glass filter\u003c\/strong\u003e protects injectors on gasoline, race fuel and E85.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003ePTFE FEED AND RETURN\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eSmooth-bore \u003cstrong\u003eAN6 PTFE lines\u003c\/strong\u003e with stainless and nylon braid carry the extra flow cleanly.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eEASIER, MORE ACCURATE TUNING\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eSteady pressure lets your tuner run \u003cstrong\u003esmaller port injectors with finer resolution\u003c\/strong\u003e and fewer DI corrections.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 18px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #d8d8d8; border-radius: 10px; overflow: hidden; margin-bottom: 30px; background: #fafafa;\"\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background: #f2f2f2;\"\u003e\n        \u003cth style=\"padding: 14px; text-align: left; color: #555; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; border-bottom: 1px solid #d8d8d8;\"\u003eModel\u003c\/th\u003e\n        \u003cth class=\"es-years-header\" style=\"padding: 14px; text-align: left; color: #555; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; border-bottom: 1px solid #d8d8d8;\"\u003eYears\u003c\/th\u003e\n        \u003cth style=\"padding: 14px; text-align: left; color: #555; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; border-bottom: 1px solid #d8d8d8;\"\u003eCompatible Trims\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e\n          \u003cstrong\u003eBMW X3 M (F97)\u003c\/strong\u003e\n          \u003cspan class=\"es-years-mobile\"\u003e2020–2024\u003c\/span\u003e\n        \u003c\/td\u003e\n        \u003ctd class=\"es-years-cell\" style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e2020–2024\u003c\/td\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5; color: #444;\"\u003eX3 M, X3 M Competition\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e\n          \u003cstrong\u003eBMW X4 M (F98)\u003c\/strong\u003e\n          \u003cspan class=\"es-years-mobile\"\u003e2020–2024\u003c\/span\u003e\n        \u003c\/td\u003e\n        \u003ctd class=\"es-years-cell\" style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e2020–2024\u003c\/td\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5; color: #444;\"\u003eX4 M, X4 M Competition\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e\n          \u003cstrong\u003eBMW X3 (G01)\u003c\/strong\u003e\n          \u003cspan class=\"es-years-mobile\"\u003e2018–2024\u003c\/span\u003e\n        \u003c\/td\u003e\n        \u003ctd class=\"es-years-cell\" style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e2018–2024\u003c\/td\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5; color: #444;\"\u003eM40i\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e\n          \u003cstrong\u003eBMW X4 (G02)\u003c\/strong\u003e\n          \u003cspan class=\"es-years-mobile\"\u003e2019–2024\u003c\/span\u003e\n        \u003c\/td\u003e\n        \u003ctd class=\"es-years-cell\" style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5;\"\u003e2019–2024\u003c\/td\u003e\n        \u003ctd style=\"padding: 16px 14px; border-bottom: 1px solid #e5e5e5; color: #444;\"\u003eM40i\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"margin: 0; padding: 14px; font-size: 14px; color: #666; border-top: 1px solid #e5e5e5;\"\u003e\n    For the X3 M \/ X4 M (S58) and X3 M40i \/ X4 M40i (B58). Not for 4-cylinder X3 or X4 models.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eWhat’s Included\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 18px;\"\u003e\u003c\/div\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 30px; font-size: 16px; line-height: 1.8;\"\u003e\n  \u003cli\u003e1x Billet aluminum top hat with dedicated AFS pump(s) (per selection)\u003c\/li\u003e\n  \u003cli\u003e1x Billet 1:1 adjustable fuel pressure regulator\u003c\/li\u003e\n  \u003cli\u003e1x 10 micron micro-glass fuel filter\u003c\/li\u003e\n  \u003cli\u003e1x AN6 PTFE feed and return line set\u003c\/li\u003e\n  \u003cli\u003e1x Plug and play pump activation harness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eAvailability \u0026amp; Shipping\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 18px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa; margin-bottom: 18px;\"\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; margin: 0; color: #555;\"\u003eThis item ships directly from Precision Raceworks. Standard Shipping applies, with rates calculated at checkout. You can \u003ca href=\"\/el\/pages\/track\" style=\"color:#0070f3;\"\u003etrack your order or check its status at any time\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Precision Raceworks","offers":[{"title":"AFS.460","offer_id":53102816493855,"sku":"601-0338","price":1758.99,"currency_code":"USD","in_stock":true},{"title":"AFS.640","offer_id":53102816526623,"sku":"601-0405","price":2009.99,"currency_code":"USD","in_stock":true},{"title":"AFS.800","offer_id":53102816559391,"sku":"601-0336","price":2177.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/7340\/1631\/files\/TopHat_Pump.jpg?v=1792727299","url":"https:\/\/eurospeed.co\/el\/products\/precision-raceworks-stand-alone-auxiliary-fuel-system-afs-for-bmw-x3-m-f97-x4-m-f98-x3-m40i-g01-x4-m40i-g02-2018-2024","provider":"EuroSpeed","version":"1.0","type":"link"}