{"product_id":"spool-stage-3-low-pressure-fuel-pump-diy-kit-b58-gen2","title":"Spool Stage 3 DIY LPFP Kit – BMW B58 Gen 2","description":"\u003cp\u003e\u003cstrong\u003eSpool Stage 3 DIY LPFP Kit for BMW B58 Gen 2\u003c\/strong\u003e is a drop-in secondary-pump upgrade for G-chassis BMW B58 applications, with selectable Walbro pump and activation-harness configurations.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWalbro 450 or Walbro 525 secondary-pump choice\u003c\/li\u003e\n\u003cli\u003eThree supplier-listed activation harness choices for Hobbs-switch or ReFlex-controlled builds\u003c\/li\u003e\n\u003cli\u003eThree-piece bracket system designed to secure the pump without cutting the factory fuel bucket\u003c\/li\u003e\n\u003cli\u003eSupplied hose and fittings tee into the factory fuel line\u003c\/li\u003e\n\u003cli\u003eWalbro 450 is the supplier-recommended choice for most applications\u003c\/li\u003e\n\u003cli\u003eWalbro 525 is intended for higher fuel-flow requirements; Spool recommends PWM control because of its higher current draw\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Spool states the kit supports G-chassis BMW B58 vehicles. Vehicle year, model or VIN should be supplied when ordering because BMW uses multiple fuel-tank bracket designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOptional items:\u003c\/strong\u003e Spool lists a pre-drilled OEM top hat and Holley Hydramat separately; they are not automatic variants in this Built by Boost \u0026amp; Tune listing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDispatch:\u003c\/strong\u003e Special order — allow 2–3 weeks.\u003c\/p\u003e\u003ch2\u003eProduct System\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFuel System\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 2 Series M240I G42 B58\u003c\/li\u003e\n\u003cli\u003eBMW 340I M340I G20 G21 B58\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series G22 B58\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series G23 B58\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series Gran Coupe G26 B58\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series G30 B58\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series Touring G31 B58\u003c\/li\u003e\n\u003cli\u003eBMW X3 G01 B58\u003c\/li\u003e\n\u003cli\u003eBMW X4 G02 B58\u003c\/li\u003e\n\u003cli\u003eBMW X5 G05 B58\u003c\/li\u003e\n\u003cli\u003eBMW X6 G06 B58\u003c\/li\u003e\n\u003cli\u003eBMW X7 G07 B58\u003c\/li\u003e\n\u003cli\u003eBMW Z4 G29 B58\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm chassis, engine, drivetrain and production-year compatibility before ordering.\u003c\/p\u003e\u003ch2\u003eAvailable Options\u003c\/h2\u003e\u003ch3\u003ePump\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWalbro 450 (Recommended)\u003c\/li\u003e\n\u003cli\u003eWalbro 525\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eActivation Harness\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGround Activation \/ ReFlex Flying Lead\u003c\/li\u003e\n\u003cli\u003eGround + Power Activation \/ ReFlex Plug N Play \/ Rev2 BM3\u003c\/li\u003e\n\u003cli\u003eSpool Hobbs Switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSupplier Part Numbers\u003c\/h2\u003e\u003cp\u003eSP-BMB58G-LPFP-DY-450-FLY, SP-BMB58G-LPFP-DY-450-PNP, SP-BMB58G-LPFP-DY-450-HOBBS, SP-BMB58G-LPFP-DY-525-FLY, SP-BMB58G-LPFP-DY-525-PNP, SP-BMB58G-LPFP-DY-525-HOBBS\u003c\/p\u003e\u003ch2\u003eBuilt by Boost \u0026amp; Tune Support\u003c\/h2\u003e\u003cp\u003eBBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Walbro 450 (Recommended) \/ Ground Activation \/ ReFlex Flying Lead","offer_id":43748157292611,"sku":"SP-BMB58G-LPFP-DY-450-FLY","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 450 (Recommended) \/ Ground + Power Activation \/ ReFlex Plug N Play \/ Rev2 BM3","offer_id":43748157325379,"sku":"SP-BMB58G-LPFP-DY-450-PNP","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 450 (Recommended) \/ Spool Hobbs Switch","offer_id":43748157358147,"sku":"SP-BMB58G-LPFP-DY-450-HOBBS","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 525 \/ Ground Activation \/ ReFlex Flying Lead","offer_id":43748157390915,"sku":"SP-BMB58G-LPFP-DY-525-FLY","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 525 \/ Ground + Power Activation \/ ReFlex Plug N Play \/ Rev2 BM3","offer_id":43748157423683,"sku":"SP-BMB58G-LPFP-DY-525-PNP","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 525 \/ Spool Hobbs Switch","offer_id":43748157456451,"sku":"SP-BMB58G-LPFP-DY-525-HOBBS","price":1771.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/3_b1d1482f-8c61-4f79-9028-0ff90699ffbd.png?v=1788406661","url":"https:\/\/builtbyboostandtune.com.au\/products\/spool-stage-3-low-pressure-fuel-pump-diy-kit-b58-gen2","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}