{"product":{"id":11142678774102,"title":"Nostrum Subaru FA20DIT 2.0 Stage 1 HPFP and DI Injector Bundle","body_html":"\u003ch2\u003eSummary\u003c\/h2\u003e\u003cp\u003eStage 1 is Nostrum's complete direct injection fuelling package for the FA20DIT: the upgraded high pressure fuel pump, flowing 37% more than the factory unit, plus a serialised set of four direct injectors flowing 10% more than stock, supplied with their tuning data. Buying them as one item is the point - the pump lifts the mid range where volume is the constraint, the injectors lift the top end where injection time is, and doing half the job usually just moves the limit. Everything stays under factory ECU control on COBB.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eA WRX or Forester XT going all-in on fuelling in one session rather than paying for the engine bay to be opened twice.\u003c\/li\u003e\n\u003cli\u003eCars committing to pump E85, where both the delivery and the injection sides need to move together.\u003c\/li\u003e\n\u003cli\u003eBolt-on builds - intake, intercooler, low pressure pump - that have reached the ceiling of the standard fuel system.\u003c\/li\u003e\n\u003cli\u003eOwners who want the pump and injectors matched and characterised by the same manufacturer, with one set of tuning data.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy The Pump And Injectors Are Bought Together\u003c\/h2\u003e\u003cp\u003eA direct injection fuel system fails you in two places. Around peak torque the cam-driven pump cannot supply enough volume, so rail pressure sags when boost comes in. Near peak power the crank angle per injection event gets short, and that is the injector's problem. Fit the pump alone and the car pulls harder early but still tails off; fit the injectors alone and the mid range stays soft. Stage 1 addresses both at once.\u003c\/p\u003e\u003ch2\u003ePlanning The Rest Of The FA20DIT Fuel System\u003c\/h2\u003e\u003cp\u003eThis package covers the high pressure side. The in-tank low pressure pump, fuel lines and calibration are separate, so factor those in - a car on E85 in particular will want the low pressure side checked. Nostrum quotes 620 whp on gasoline and 460 whp on E85 as the capacity of this fuel system on a build that already has the air handling, mechanical strength and tuning to use it.\u003c\/p\u003e\u003ch2\u003eKey Specs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eManufacturer: Nostrum High Performance\u003c\/li\u003e\n\u003cli\u003eProduct type: matched high pressure pump and direct injector package\u003c\/li\u003e\n\u003cli\u003eSKU: H186-1282\u003c\/li\u003e\n\u003cli\u003ePump flow: 37% more than the factory high pressure pump\u003c\/li\u003e\n\u003cli\u003eInjector flow: 10% more than the stock injector, set of four\u003c\/li\u003e\n\u003cli\u003eMax operating pressure: 150 bar\u003c\/li\u003e\n\u003cli\u003eFuel: E85 and ethanol compatible; Nostrum recommends E85\u003c\/li\u003e\n\u003cli\u003eIncluded: assembled high pressure fuel pump, four serialised injectors with tuning data, installation guide\u003c\/li\u003e\n\u003cli\u003eNot included: tune, low pressure fuel pump, fuel lines\u003c\/li\u003e\n\u003cli\u003eWarranty: Nostrum limited lifetime, original purchaser only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment And Setup Checks\u003c\/h2\u003e\u003cp\u003eThe package covers the 2015-2021 Subaru WRX and the 2014-2018 Forester XT running the FA20DIT 2.0 turbo. A calibration is required and COBB is the recommended suite; arrange the tuning slot when you order so the car is not sitting on a trailer waiting. If you already have one half of the setup, the \u003ca href=\"\/products\/nostrum-2-0l-subaru-fa20dit-high-pressure-fuel-pump\"\u003epump\u003c\/a\u003e and the \u003ca href=\"\/products\/nostrum-2-0l-subaru-upgraded-direct-injectors\"\u003einjector set\u003c\/a\u003e are both available on their own.\u003c\/p\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru WRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eSubaru Forester XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eNostrum High Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFuel system package - HPFP plus DI injectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eH186-1282\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Application\u003c\/td\u003e\n\u003ctd\u003eSubaru FA20DIT 2.0 turbo (direct injection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump Flow Increase\u003c\/td\u003e\n\u003ctd\u003e37% over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInjector Flow Increase\u003c\/td\u003e\n\u003ctd\u003e10% over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Operating Pressure\u003c\/td\u003e\n\u003ctd\u003e150 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Items\u003c\/td\u003e\n\u003ctd\u003eFully assembled HPFP, four serialised injectors with tuning data, installation guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel Compatibility\u003c\/td\u003e\n\u003ctd\u003eE85 and ethanol compatible, E85 recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTune Requirement\u003c\/td\u003e\n\u003ctd\u003eYes - COBB recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel System Capacity\u003c\/td\u003e\n\u003ctd\u003e620 whp gasoline \/ 460 whp E85 with full supporting build\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime, original purchaser only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs a tune included?\u003c\/h3\u003e\u003cp\u003eNo. You get the hardware and the injector tuning data for your tuner. The calibration is arranged separately, and COBB is the suite Nostrum recommends here.\u003c\/p\u003e\u003ch3\u003eDo I need to upgrade the in-tank pump as well?\u003c\/h3\u003e\u003cp\u003eThe low pressure side is not part of this package. On a car moving to E85, check with your tuner whether the standard in-tank pump keeps up with your target.\u003c\/p\u003e\u003ch3\u003eCan I fit the pump now and the injectors later?\u003c\/h3\u003e\u003cp\u003eYou can buy them separately to stage the spend, but they solve different halves of the same limit. Fitting both at once also means one install and one tuning session.\u003c\/p\u003e","vendor":"Nostrum High Performance","product_type":"Fuel Systems","created_at":"2026-07-24T13:04:19+01:00","handle":"nostrum-2-0l-subaru-fa20dit-stage-1-bundle","updated_at":"2026-09-08T16:48:31+01:00","published_at":"2026-07-24T17:58:35+01:00","template_suffix":null,"published_scope":"global","tags":"brand:nostrum-high-performance, cat:fuel, dept:performance-parts, fits:subaru-forester, fits:subaru-wrx, make:subaru, Subaru, Subaru Forester, Subaru Forester XT, Subaru WRX, type:fuel-systems","variants":[{"id":54805996372310,"product_id":11142678774102,"title":"Default Title","price":"1952.22","sku":"H186-1282","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-07-24T13:04:19+01:00","updated_at":"2026-09-08T16:48:31+01:00","taxable":true,"barcode":null,"grams":0,"image_id":null,"weight":0.0,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]}],"options":[{"id":14231281107286,"product_id":11142678774102,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":83087877275990,"product_id":11142678774102,"position":1,"created_at":"2026-07-24T16:02:13+01:00","updated_at":"2026-07-24T16:02:15+01:00","alt":"Nostrum 2.0L Subaru FA20DIT Stage 1 Bundle","width":500,"height":500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/MicrosoftTeams-image_53__41823.1694016660_7dffe312-38a5-40ff-8f1c-d4c884e16b8b.jpg?v=1784905335","variant_ids":[]}],"image":{"id":83087877275990,"product_id":11142678774102,"position":1,"created_at":"2026-07-24T16:02:13+01:00","updated_at":"2026-07-24T16:02:15+01:00","alt":"Nostrum 2.0L Subaru FA20DIT Stage 1 Bundle","width":500,"height":500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/MicrosoftTeams-image_53__41823.1694016660_7dffe312-38a5-40ff-8f1c-d4c884e16b8b.jpg?v=1784905335","variant_ids":[]}}}