{"product_id":"b58-gen2-stage-3-low-pressure-fuel-pump-diy-kit","title":"Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [Gen 2 B58]","description":"\u003ch1\u003e\u003cspan\u003eSpool Stage 3 Low Pressure Fuel Pump (LPFP) – DIY LPFP Kit (Gen 2 B58)\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIntroducing the only true plug-and-play Stage 3 LPFP solution for G-chassis BMW B58 models. This kit is compatible with all G-chassis BMWs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003ePlease provide your vehicle's year, make, model, or VIN when ordering\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e so we can determine the correct mounting bracket for your fuel tank. BMW uses different fuel tank designs across the G-chassis lineup, so the bracket shown in the product images may not be the exact one you receive. Functionality, fitment, and performance will remain the same.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose the Spool Stage 3 LPFP Kit?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike other kits on the market, our design requires \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eno drilling or cutting of the fuel bucket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. The pump is secured using our proprietary three-piece bracket system, which locks directly into the factory fuel tank assembly for a true drop-in installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor customers who prefer not to drill their factory fuel pump top hat for the power wiring, we also offer a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epre-drilled OEM top hat\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e as an optional upgrade for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e$50\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Please email sales@spoolperformance.us for this option or add as a request in the order notes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe supplied fuel hoses simply tee into your factory fuel line using the included fittings and hoses, making installation straightforward and DIY-friendly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHarness Options\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWe offer three harness options to accommodate a variety of builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpool Hobbs Switch Harness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis harness uses the included \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10 PSI Hobbs pressure switch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to activate the secondary fuel pump under boost.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Hobbs switch can be connected by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTapping into the charge pipe, or\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing our optional fitting to tee into the intake manifold.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe harness connects directly to the battery for power and ground, then routes to the fuel pump and continues into the engine bay to connect to the Hobbs switch. This is the ideal solution for customers who are not using a Reflex controller.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReflex Plug-and-Play Harness (May Also Work with Rev2)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis harness is designed for Reflex-controlled applications that require both \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epower and ground\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to activate the auxiliary pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on your existing Reflex harness, you may need to depin the connector and swap the power and ground wires. This is a simple procedure that any knowledgeable performance shop can perform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe harness routes from the battery to the pump and then connects directly to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAuxiliary Output 2\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e on your aftermarket Reflex harness.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReflex Flying Lead \/ Ground Trigger \/ Universal Harness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is our most popular option and is designed for customers using the standard Motiv Reflex main harness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe harness is activated through a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eground trigger\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e using \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAuxiliary Output 2\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Simply strip the gray Aux 2 wire, connect it using the supplied butt connector, and plug the connector into the harness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis eliminates the need to source terminals or build your own connector, reducing installation time and preventing common wiring issues caused by improperly pinned connectors.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFuel Pump Options\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWalbro 450\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWe recommend the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWalbro 450\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for the vast majority of applications. It provides more than enough fuel for most street, drag racing, and high-performance builds while maintaining excellent reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWalbro 525\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWalbro 525\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is recommended for customers with higher horsepower goals requiring additional fuel flow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDue to its higher current draw, we strongly recommend pairing the 525 with our \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePWM harness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Running the standard relay harness with a 525, particularly in hot climates, can overload and prematurely damage the relay.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eOptional Holley Hydramat\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor customers concerned about fuel starvation during hard cornering or low fuel levels, we offer an optional \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHolley Hydramat\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e upgrade for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e$200\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis upgrade is highly recommended for road racing, autocross, circuit racing, and other motorsports where sustained lateral G-forces can uncover the fuel pump pickup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEmail us to purchase this!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eQuestions?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eIf you have any questions about fitment, harness selection, or which pump is best for your build, please contact us at \u003c\/span\u003e\u003ca href=\"mailto:sales@spoolperformance.us\"\u003e\u003cstrong\u003e\u003cspan\u003esales@spoolperformance.us\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e or send us a message on Instagram.\u003c\/span\u003e\u003c\/p\u003e","brand":"SPOOL","offers":[{"title":"Walbro 450 (Recommended) \/ Ground Activation \/ Reflex Flying Lead","offer_id":55836061827394,"sku":"SP-BMB58G-LPFP-DY-1","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Walbro 450 (Recommended) \/ Ground + Power Activation \/ Reflex Plug N Play \/ Rev2 BM3","offer_id":55836061860162,"sku":"SP-BMB58G-LPFP-DY-2","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Walbro 450 (Recommended) \/ Spool Hobbs Switch","offer_id":55836061892930,"sku":"SP-BMB58G-LPFP-DY-3","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Walbro 525 \/ Ground Activation \/ Reflex Flying Lead","offer_id":55836061925698,"sku":"SP-BMB58G-LPFP-DY-4","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Walbro 525 \/ Ground + Power Activation \/ Reflex Plug N Play \/ Rev2 BM3","offer_id":55836061958466,"sku":"SP-BMB58G-LPFP-DY-5","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Walbro 525 \/ Spool Hobbs Switch","offer_id":55836061991234,"sku":"SP-BMB58G-LPFP-DY-6","price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/7224\/2242\/files\/3_3772aba2-da93-49b4-a9b5-b836983a469c.png?v=1768325344","url":"https:\/\/spoolperformance.com\/products\/b58-gen2-stage-3-low-pressure-fuel-pump-diy-kit","provider":"Spool Performance","version":"1.0","type":"link"}