{"product_id":"spool-stage-4-fx400x-hpfp-bmw-b58-gen2","title":"Spool Stage 4 FX400X High-Pressure Fuel Pump – BMW B58 Gen 2","description":"\u003cp\u003e\u003cstrong\u003eSpool Stage 4 FX400X High-Pressure Fuel Pump for BMW B58 Gen 2\u003c\/strong\u003e is Spool's flagship high-pressure pump for high-output direct-injection builds.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSupplier-rated for up to 350 bar \/ 35 MPa \/ 5000 psi operation\u003c\/li\u003e\n\u003cli\u003eApproximately 20% more delivery across the range than Spool's FX350\u003c\/li\u003e\n\u003cli\u003ePlug-and-play architecture with mounting hardware, pump alignment tool, low-pressure line and adapter harness\u003c\/li\u003e\n\u003cli\u003eDesigned for use with upgraded B58 Gen 2 direct-injection systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSelectable options:\u003c\/strong\u003e wireless ethanol analyzer and Spool 10-micron filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e calibration changes are required and adequate low-pressure fuel supply is critical.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDispatch:\u003c\/strong\u003e Backorder — lead time confirmed when stock is allocated.\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 G01, G02, G05, G06, G07, G20, G21, G22, G23, G26, G29, G30, G31, G32, G42, G43\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle models:\u003c\/strong\u003e M240i, M340i, M440i, 540i, 640i, 740i, 840i, X3 M40i, X4 M40i, X5 40i, X6 40i, X7 40i, Z4 M40i\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":"No ethanol analyzer required \/ No 10 micron filter","offer_id":49973714026738,"sku":"SP-FX400X-B58G2-NOEA-NF","price":4365.0,"currency_code":"AUD","in_stock":true},{"title":"No ethanol analyzer required \/ Include 10 micron filter","offer_id":49973714059506,"sku":"SP-FX400X-B58G2-NOEA-F","price":4598.0,"currency_code":"AUD","in_stock":true},{"title":"Existing Spool ethanol analyzer already installed \/ No 10 micron filter","offer_id":49973714092274,"sku":"SP-FX400X-B58G2-EXEA-NF","price":4365.0,"currency_code":"AUD","in_stock":true},{"title":"Existing Spool ethanol analyzer already installed \/ Include 10 micron filter","offer_id":49973714125042,"sku":"SP-FX400X-B58G2-EXEA-F","price":4598.0,"currency_code":"AUD","in_stock":true},{"title":"Include wireless ethanol analyzer \/ No 10 micron filter","offer_id":49973714157810,"sku":"SP-FX400X-B58G2-EA-NF","price":4912.0,"currency_code":"AUD","in_stock":true},{"title":"Include wireless ethanol analyzer \/ Include 10 micron filter","offer_id":49973714190578,"sku":"SP-FX400X-B58G2-EA-F","price":5145.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/4825\/5986\/files\/spool_n5_13da9b2d-129b-4722-8326-dd59ded3a9de.png?v=1787608905","url":"https:\/\/mlab-boostandtune.com\/products\/spool-stage-4-fx400x-hpfp-bmw-b58-gen2","provider":"M Lab by Boost \u0026 Tune","version":"1.0","type":"link"}