{"product_id":"fuel-it-bmw-15psi-hobbs-switch","title":"Fuel-It FI041 15 PSI Boost Pressure Switch - Hobbs-Style Turbo Boost Switch, Boost-Referenced LPFP Trigger\/Relay\/Controller for Auxiliary\/Secondary Fuel Pump - BMW N54\/N55 E82 E88 E90 E91 E92 E93 E84 135i 335i 1M - Stage 3\/4 Upgrade","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \n  \u003ch2\u003eFI041 15 psi Boost Pressure Switch for BMW N54 and N55 - reliable auxiliary LPFP activation under load\u003c\/h2\u003e\n  \n  \u003cp\u003eKeep your uprated fuel system in step with boost. The Fuel-It FI041 15 psi boost-referenced pressure switch engages your auxiliary low pressure fuel pump exactly when cylinder demand rises, helping tuned turbo BMWs maintain consistent supply on road, strip and track. Perfect for Stage III and Stage IV LPFP setups on the N54 and N55, this Hobbs-style switch adds simple, predictable control to your fuelling strategy.\u003c\/p\u003e\n  \n  \u003cp\u003eWe run this on our own builds and customer cars and it just works. The fixed 15 psi set point gives smooth, repeatable pump activation so you get stable fuel pressure and confident power delivery at higher boost targets. A proven, no-nonsense solution for E-chassis performance BMWs that need dependable auxiliary pump control.\u003c\/p\u003e\n  \n  \u003ch3\u003eKey reasons to choose FI041\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e15 psi boost-referenced activation for your secondary low pressure pump\u003c\/li\u003e\n    \u003cli\u003eBuilt for upgraded LPFP systems on N54 and N55 turbo applications\u003c\/li\u003e\n    \u003cli\u003eSupports tuned and hybrid-turbo builds where extra flow is essential\u003c\/li\u003e\n    \u003cli\u003eCrisp, consistent trigger point for seamless fuelling under acceleration\u003c\/li\u003e\n    \u003cli\u003eTrusted Fuel-It component that integrates cleanly into performance fuel systems\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eVehicle applications\u003c\/h3\u003e\n  \u003cp\u003eDesigned for BMW E-chassis models with N54 or N55 petrol engines, including:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 Series E82 Coupe and E88 Convertible - 135i\u003c\/li\u003e\n    \u003cli\u003e3 Series E90 Saloon, E91 Touring, E92 Coupe, E93 Convertible - 335i\u003c\/li\u003e\n    \u003cli\u003e1 Series M Coupe - 1M\u003c\/li\u003e\n    \u003cli\u003eX1 E84 with N54 or N55\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eIdeal for enthusiasts searching for terms such as boost pressure switch, turbo boost switch 15 psi, auxiliary fuel pump activator, LPFP trigger switch, boost referenced fuel pump switch, fuel pump relay trigger, BMW E82 E88 E90 E91 E92 E93 fuel upgrade, N54 N55 fuel control and Stage 3 Stage 4 LPFP controller.\u003c\/p\u003e\n  \n  \u003ch3\u003eFitment check\u003c\/h3\u003e\n  \u003cp\u003eAdd your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility before dispatch.\u003c\/p\u003e\n  \n  \u003ch3\u003eProfessional installation\u003c\/h3\u003e\n  \u003cp\u003eWant it fitted correctly the first time? Book expert installation with MJ Modifications in Warwickshire. Request a fitting quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n  \n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eFI041\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eBrand\u003c\/h3\u003e\n  \u003cp\u003eFuel-It\u003c\/p\u003e\n  \n  \u003ch3\u003eWarranty\u003c\/h3\u003e\n  \u003cp\u003eFuel-It Limited Warranty.\u003c\/p\u003e\n  \n  \u003cp\u003eUpgrade your fuelling control today with the Fuel-It FI041 15 psi boost pressure switch and enjoy predictable, confident performance every time you lean on the throttle.\u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"Fuel-It","offers":[{"title":"Default Title","offer_id":55975622410626,"sku":null,"price":79.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/FUEL-ITBMW15PSIHOBBSSWITCH_01_1946x_9e618c2b-823d-4ed8-993c-460ecc9115d0_1024x1024_2x-transformed.webp?v=1763322728","url":"https:\/\/mjmodifications.co.uk\/products\/fuel-it-bmw-15psi-hobbs-switch","provider":"MJ Modifications","version":"1.0","type":"link"}