{"product_id":"stage-1-lpfp-fuel-pump-kit-with-walbro-255-gsl392-inline-pump-for-bmw-135i-1-series-m-coupe-335ix-n54-n55-e-series","title":"Stage 1 LPFP Fuel Pump Kit with Walbro 255 GSL392 Inline Pump for BMW 135i, 1 Series M Coupe, 335i(x) N54\/N55 E-Series","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt higher power levels, one of the first limitations encountered on virtually all turbocharged BMW engines is the fuel supply system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOne of the most cost-effective and efficient upgrades is improving the low-pressure fuel pump (LPFP), which delivers fuel from the tank to the high-pressure fuel pump in the engine bay.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Stage 1 Low-Pressure Fuel Pump (LPFP) Upgrade Kit offered here is based on a genuine Walbro 255 (GSL392) inline fuel pump, which is installed in series with the factory fuel pump. This configuration increases the overall fuel flow by approximately 50%.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eComplete kit for installing the Walbro GSL392 inline pump in series with the factory OEM fuel pump.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRecommended for vehicles producing up to 600 HP.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIncludes:\u003c\/span\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eOEM-quality fuel line, fully compatible with E85 fuel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFuel-resistant wiring harness.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-quality wiring adapters for the Walbro fuel pump.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlug-and-play fittings for a precise and straightforward installation.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with all BMW E-Series models equipped with N54 and N55 engines.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatibility with BMW F-Series models is currently under evaluation.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eOur Recommendation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBefore upgrading, we recommend verifying the performance of the factory fuel pump by reviewing an MHD data log and monitoring the Low Pressure Fuel Pump parameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf fuel pressure drops significantly below 60 PSI (approximately 4 bar) under full load, the factory pump should either be replaced or upgraded to our Stage 2 LPFP kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTo help you choose the right fuel pump upgrade, keep an eye on our blog. We will soon publish a detailed article explaining the N54 fuel system and the differences between the available upgrade options.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eImportant Notice\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eVehicle manufacturers and model names are used solely to identify the intended application and confirm vehicle compatibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnless the product description specifically states that a Parts Approval Certificate (Teilegutachten), TÜV certificate, or ABE (General Operating Permit) is included, the product is supplied without road approval for use under German traffic regulations (StVZO).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIn such cases, an individual inspection and approval in accordance with §21 StVZO is required before the product can be legally used on public roads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor additional information, please feel free to contact us.\u003c\/span\u003e\u003c\/p\u003e","brand":"TunePoint Europe","offers":[{"title":"Default Title","offer_id":57748569588056,"sku":null,"price":266.69,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/2440\/7128\/files\/Fuel_255_1024x1024_01_5000x-removebg-preview.png?v=1784551790","url":"https:\/\/tunepoint.eu\/products\/stage-1-lpfp-fuel-pump-kit-with-walbro-255-gsl392-inline-pump-for-bmw-135i-1-series-m-coupe-335ix-n54-n55-e-series","provider":"TunePoint Europe","version":"1.0","type":"link"}