{"product_id":"spool-stage-3-lpfp-diy-bmw-g30-540i-b58","title":"Spool Stage 3 DIY Low-Pressure Fuel Pump – BMW G30 540i B58","description":"\u003cdiv class=\"mlab-product-details\" style=\"line-height:1.65;max-width:100%\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpool Stage 3 DIY Low-Pressure Fuel Pump Kit\u003c\/strong\u003e is the dedicated G30 540i B58 version of Spool's secondary-pump low-side fuel upgrade.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in secondary fuel-pump solution with no cutting of the factory fuel bucket\u003c\/li\u003e\n\u003cli\u003eProprietary bracket system matched to the BMW fuel-tank configuration\u003c\/li\u003e\n\u003cli\u003eDesigned for high-output gasoline and E85 combinations\u003c\/li\u003e\n\u003cli\u003eIncludes pump mounting hardware and activation-harness hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePump selector:\u003c\/strong\u003e Walbro 450 or Walbro 525.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActivation selector:\u003c\/strong\u003e Ground Activation \/ ReFlex Flying Lead, Ground + Power Activation \/ ReFlex Plug N Play \/ Rev2 BM3, or Spool Hobbs Switch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e BMW uses different fuel-tank designs across G-chassis vehicles. Provide the vehicle year\/model or VIN so the correct mounting bracket can be supplied.\u003c\/p\u003e\n\u003cp\u003eSpool also offers a pre-drilled OEM top hat and Holley Hydramat by request; these are not standard storefront selector options and are therefore not included in this listing's variants.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDispatch:\u003c\/strong\u003e Special order — allow 2–3 weeks.\u003c\/p\u003e\n\u003csection\u003e\u003ch3 style=\"border-bottom:1px solid #b99b5c;padding-bottom:8px;margin-top:24px\"\u003eSupplier specification \u0026amp; ordering notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProvide the vehicle year, model and VIN so the correct fuel-tank bracket can be supplied. G-chassis tank layouts vary.\u003c\/li\u003e\n\u003cli\u003eThe supplier’s three-piece bracket fits the factory tank assembly without cutting or drilling the fuel bucket. A pre-drilled top hat is a separate optional item.\u003c\/li\u003e\n\u003cli\u003eChoose the harness for the controller: 10 psi Hobbs activation; Reflex power-and-ground activation; or Reflex Aux 2 ground-trigger\/flying-lead wiring. Verify polarity with the installer.\u003c\/li\u003e\n\u003cli\u003eWalbro 450 and 525 pump configurations are listed. Spool recommends PWM control with the higher-current 525 to avoid overloading a conventional relay, particularly in hot conditions.\u003c\/li\u003e\n\u003cli\u003eA Holley Hydramat pickup is a separate supplier option for sustained cornering and low-fuel use. Confirm MLAB availability and AUD pricing before ordering add-ons.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Spool Performance","offers":[{"title":"Walbro 450 (Recommended) \/ Ground Activation \/ Reflex Flying Lead","offer_id":49973952512242,"sku":"SP-G30540-LPFPDIY-1","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 450 (Recommended) \/ Ground + Power Activation \/ Reflex Plug N Play \/ Rev2 BM3","offer_id":49973952545010,"sku":"ML-SP-G30540-LPFPDIY-450-PNP","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 450 (Recommended) \/ Spool Hobbs Switch","offer_id":49973952577778,"sku":"ML-SP-G30540-LPFPDIY-450-HOBBS","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 525 \/ Ground Activation \/ Reflex Flying Lead","offer_id":49973952610546,"sku":"ML-SP-G30540-LPFPDIY-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":49973952643314,"sku":"ML-SP-G30540-LPFPDIY-525-PNP","price":1771.0,"currency_code":"AUD","in_stock":true},{"title":"Walbro 525 \/ Spool Hobbs Switch","offer_id":49973952676082,"sku":"ML-SP-G30540-LPFPDIY-525-HOBBS","price":1771.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/4825\/5986\/files\/supradiyLPFP4-1014x912_7c6f13f8-ac85-4e5d-b1a3-fb74b68e16c9.jpg?v=1787624458","url":"https:\/\/mlab-boostandtune.com\/products\/spool-stage-3-lpfp-diy-bmw-g30-540i-b58","provider":"M Lab by Boost \u0026 Tune","version":"1.0","type":"link"}