{"product_id":"spool-stage-3-lpfp-diy-bmw-b58-gen1","title":"Spool Stage 3 DIY Low-Pressure Fuel Pump – BMW B58 Gen 1","description":"\u003cp\u003e\u003cstrong\u003eSpool Stage 3 DIY Low-Pressure Fuel Pump for BMW B58 Gen 1\u003c\/strong\u003e adds a secondary boost-activated low-pressure pump using Spool's DIY hardware package.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Walbro 450 secondary pump\u003c\/li\u003e\n\u003cli\u003eBillet aluminium pump holder\u003c\/li\u003e\n\u003cli\u003eQuick-connect fuel hose and fitting package\u003c\/li\u003e\n\u003cli\u003eHardware required for the secondary-pump installation\u003c\/li\u003e\n\u003cli\u003eSelectable secondary-pump activation harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSecondary Pump Activation:\u003c\/strong\u003e choose Hobbs switch, ReFlex plug-and-play or ReFlex flying-lead activation. All three supplier configurations are separate Shopify variants even though their selling price is identical.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e supplier\/reseller documentation confirms F30\/F31\/F34 340i and F32\/F33\/F36 440i B58 Gen 1 applications. Confirm VIN before ordering where fuel-tank hardware differs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDispatch:\u003c\/strong\u003e Special order — allow 2–3 weeks.\u003c\/p\u003e\u003ch3\u003eConfirmed catalogue fitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine families:\u003c\/strong\u003e B58\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW chassis:\u003c\/strong\u003e F30, F31, F34, F32, F33, F36\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle models:\u003c\/strong\u003e 340i, 440i\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFuel-system selection and installation\u003c\/h3\u003e\u003cp\u003eFuel-system parts must be selected around the complete combination of engine generation, fuel type, target output, existing pump and injector configuration, and the calibration strategy. A component appearing for an engine family does not mean it replaces every factory or upgraded fuel-system arrangement used on that engine.\u003c\/p\u003e\u003cp\u003eProfessional installation and calibration are recommended where the product changes fuel pressure, pump control, injector flow, ethanol-content input or port-injection operation. Confirm wiring, plumbing, electrical load, controller requirements and compatible supporting hardware before ordering.\u003c\/p\u003e\u003ch3\u003eBefore ordering\u003c\/h3\u003e\u003cp\u003eSelect your exact BMW through MLAB My Garage and review the product options, included parts and installation requirements. Where a vehicle has been modified from its original engine, transmission or fuel-system specification, contact MLAB with the VIN and current hardware list so the combination can be checked before supply.\u003c\/p\u003e\u003ch3\u003eMLAB support\u003c\/h3\u003e\u003cp\u003eMLAB by Boost and Tune can assist with product selection, workshop installation and dyno calibration for supported BMW applications in Melbourne. Product availability and lead time should be confirmed when ordering supplier-built or special-order components.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Hobbs switch secondary pump activation","offer_id":49973621653746,"sku":"SP-B58-LPDIY-HOBBS","price":1303.0,"currency_code":"AUD","in_stock":true},{"title":"Reflex controller - plug and play secondary pump activation","offer_id":49973621686514,"sku":"SP-B58-LPDIY-REFLEX-PNP","price":1303.0,"currency_code":"AUD","in_stock":true},{"title":"Reflex controller flying lead secondary pump activation","offer_id":49973621719282,"sku":"SP-B58-LPDIY-REFLEX-FLY","price":1303.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/4825\/5986\/files\/fchassi_20diy3-1014x912.jpg?v=1787607452","url":"https:\/\/mlab-boostandtune.com\/products\/spool-stage-3-lpfp-diy-bmw-b58-gen1","provider":"M Lab by Boost \u0026 Tune","version":"1.0","type":"link"}