{"product_id":"dorch-engineering-n55-pwg-lift-kit-hpfp-upgrade","title":"Dorch Engineering N55 PWG Lift Kit - HPFP Upgrade","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eBuilding on the same proven approach as their S55 Lift Kit, Dorch Engineering's N55 Lift Kit adds up to \u003cstrong\u003e+49% more fuel flow\u003c\/strong\u003e on top of either of their existing N55 HPFP kits (DS1\/DS15 or DS2\/DS25), pushing higher power capacity than was previously possible with the OEM direct-injection fuel system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe process starts with genuine BMW vacuum pump cores, into which Dorch Engineering installs their proprietary cam within the OEM assembly, using their own manufacturing tooling and validation equipment, resulting in a clean, simple package with substantially increased fuel flow while retaining the full safety and sophistication of the stock DME. Real-world numbers back this up directly: paired with larger injectors and Dorch's Stage 1 pump, this supports \u003cstrong\u003e750whp on E10 and 600whp on E85\u003c\/strong\u003e. Paired with larger injectors and their Stage 2 pump, it climbs to \u003cstrong\u003e900whp on E10 and 750whp on E85\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eImportant compatibility notes:\u003c\/strong\u003e this lift kit is genuinely \u003cstrong\u003enot compatible with OEM HPFPs\u003c\/strong\u003e, it must be combined with one of Dorch's existing upgraded N55 HPFP kits (DS1\/DS15 or DS2\/DS25). When paired with the DS2\/DS25 pump, a minimum power requirement applies, this is simply to keep the tune manageable for your tuner. There's no minimum requirement when paired with the DS1\/DS15 pump, making that combination sensible by default for most builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eSoftware changes are required to run this upgrade\u003c\/strong\u003e, not optional, though preset optimised maps are available via Bootmod3, with MHD support coming soon, simply select the appropriate \"Lift Kit\" option when flashing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eWhy Choose This HPFP Upgrade\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e+49% more fuel flow on top of an existing Dorch N55 HPFP kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupports up to 900whp on E10, or 750whp on E85, with Stage 2 pump and larger injectors\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGenuine BMW vacuum pump cores with Dorch's proprietary cam installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRetains full OEM DME safety and sophistication\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePreset Bootmod3 maps available, MHD support coming soon\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eCompatibility\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW E82\/E88 135i\/1M (N55, PWG)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW E90\/E92\/E93 335i (N55, PWG)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F20\/F21 (N55: 135i, M135i, PWG, built before ~07\/2013)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F30\/F31\/F34 (N55: 335i, 335xi, PWG, built before ~07\/2013)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F10\/F11 (N55: 535i, 535xi, PWG, built before ~07\/2013)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F25\/F26 X3\/X4 35i (N55, PWG, built before ~07\/2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eNot compatible with:\u003c\/strong\u003e 2011-2012 N55 vehicles specifically for the \u003cem\u003elift kit flow spec\u003c\/em\u003e per Dorch's own listing (confirm this restriction with your supplier, as it may be distinct from the general PWG\/EWG cutoff), or OEM HPFPs (this is an add-on to an existing Dorch upgraded HPFP kit, not a standalone product).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eHow to confirm PWG vs EWG:\u003c\/strong\u003e production date determines this, not model year. For F30\/F20\/F10 models built around June-July 2013, checking the physical wastegate connector is the reliable method, PWG units have a visible blue connector that EWG units lack.\u003c\/p\u003e","brand":"Dorch Engineering","offers":[{"title":"No - I will send my vacuum pump upfront","offer_id":54462612668749,"sku":"DEN-FUP-N55-006","price":1040.54,"currency_code":"EUR","in_stock":false},{"title":"Yes - Additional Charge","offer_id":54462612701517,"sku":"DEN-FUP-N55-006","price":1500.34,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4808\/2253\/files\/dorch-engineering-n55-pwg-lift-kit-hpfp-upgrade.webp?v=1785944783","url":"https:\/\/i6tuning.com\/products\/dorch-engineering-n55-pwg-lift-kit-hpfp-upgrade","provider":"i6 Tuning","version":"1.0","type":"link"}