{"product":{"id":11142675661142,"title":"Nostrum Subaru FA24 2.4 Upgraded DI Injectors, Set of 4","body_html":"\u003ch2\u003eSummary\u003c\/h2\u003e\u003cp\u003eThe FA24 makes easy power on bolt-ons, then the factory fuel system draws a line. Nostrum's upgraded direct injectors move it: 24% more flow than standard, 1450 cc\/min at a commanded 240 bar rail, supplied as a set of four flow tested and batched with serial numbers and tuning data. They stay under factory ECU control on COBB, so a 2022-on WRX, Ascent, Legacy XT or Outback XT gains the fuel without gaining a second fuel system to look after.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eA 2022-on WRX with intake, downpipe and turbo upgrades that has hit the injector wall at high rpm.\u003c\/li\u003e\n\u003cli\u003eOutback XT, Legacy XT and Ascent owners wanting the same headroom on a car that tows or covers miles.\u003c\/li\u003e\n\u003cli\u003eCars going to pump E85, where the injector must move far more volume for the same air.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe Odd Injector In The Set And Where It Goes\u003c\/h2\u003e\u003cp\u003eOpen the box and one of the four looks different. The FA24 has a cast aluminium coolant crossover pipe that fouls a standard connector and makes the install awkward at best. Nostrum extended and repositioned the harness connector on that injector so it clears the casting, and it goes into cylinder 1. The set uses custom orientation spring clips to lock into the fuel rail correctly. No permanent changes to the engine are needed.\u003c\/p\u003e\u003ch2\u003eFeeding A Bolt-On FA24 On Pump E85\u003c\/h2\u003e\u003cp\u003eNostrum quotes 600 whp on gasoline and 480 whp on E85 as the capacity of this set on a build that already has the air handling, mechanical strength and calibration to use it - a ceiling for a fully supported car. In practice it means the injector stops being the thing your tuner works around, so the calibration can chase the fuel target through the top of the rev range instead of protecting it. The spray pattern is OEM equivalent, so idle and cold start behave.\u003c\/p\u003e\u003ch2\u003eKey Specs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eManufacturer: Nostrum High Performance\u003c\/li\u003e\n\u003cli\u003eProduct type: high flow direct injectors (DI), set of 4\u003c\/li\u003e\n\u003cli\u003eSKU: H720-2106\u003c\/li\u003e\n\u003cli\u003eFlow: 24% more than stock, 1450 cc\/min\u003c\/li\u003e\n\u003cli\u003eCommanded operating pressure: 240 bar \/ 24 MPa \/ 3480 psi\u003c\/li\u003e\n\u003cli\u003eDesign: OE outline with orientation spring clips; cylinder 1 injector has an extended connector to clear the coolant crossover\u003c\/li\u003e\n\u003cli\u003eControl: factory ECU, COBB recommended; fully ethanol compatible\u003c\/li\u003e\n\u003cli\u003eIncluded: four serialised injectors, installation instructions, tuning guide for certified tuners\u003c\/li\u003e\n\u003cli\u003eWarranty: Nostrum limited lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment And Setup Checks\u003c\/h2\u003e\u003cp\u003eCheck your car against the table below - turbocharged FA24 only. A calibration is required: Nostrum says a tune is needed for good cold start and accurate fuel trims and advises against driving before it is loaded, so line the tuning up with the install. The guide goes to dealers and certified tuners rather than owners. To lift the mid range too, add the \u003ca href=\"\/products\/nostrum-subaru-fa24-upgraded-high-pressure-fuel-pump\"\u003eFA24 high pressure fuel pump\u003c\/a\u003e, or take both together in the \u003ca href=\"\/products\/nostrum-nostrum-subaru-fa24-bundle-h186-2058\"\u003eFA24 bundle\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003ctd\u003eSubaru WRX - FA24F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019+\u003c\/td\u003e\n\u003ctd\u003eSubaru Ascent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020+\u003c\/td\u003e\n\u003ctd\u003eSubaru Legacy XT, Sport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020+\u003c\/td\u003e\n\u003ctd\u003eSubaru Outback XT, Wilderness\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\u003eHigh flow direct injectors (DI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eH720-2106\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet Size\u003c\/td\u003e\n\u003ctd\u003e4, serialised batch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Application\u003c\/td\u003e\n\u003ctd\u003eSubaru FA24 2.4 turbo (direct injection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Increase\u003c\/td\u003e\n\u003ctd\u003e24% over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate\u003c\/td\u003e\n\u003ctd\u003e17.5 g\/s (Viscor 16A) at 100 bar; 1450 cc\/min (nHeptane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e240 bar \/ 24 MPa \/ 3480 psi commanded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Management\u003c\/td\u003e\n\u003ctd\u003eFactory ECU, COBB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel Compatibility\u003c\/td\u003e\n\u003ctd\u003eFully ethanol compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel System Capacity\u003c\/td\u003e\n\u003ctd\u003e600 whp gasoline \/ 480 whp E85, full supporting build\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhy does one injector look different, and where does it go?\u003c\/h3\u003e\u003cp\u003eIt has a longer, repositioned connector lead so it clears the cast aluminium coolant crossover pipe. It is fitted to cylinder 1 and the included guide covers the procedure.\u003c\/p\u003e\u003ch3\u003eWill these fit the BRZ or GT86 FA24?\u003c\/h3\u003e\u003cp\u003eNo. The naturally aspirated FA24 in the BRZ and GT86 uses Toyota's D4S system with a different style of direct injector. Those cars run port injection alongside direct injection, which makes port injector upgrades a simpler route.\u003c\/p\u003e\u003ch3\u003eCan I fit them to an Ascent?\u003c\/h3\u003e\u003cp\u003eYes - Nostrum lists the 2019-on Ascent alongside the WRX, Legacy XT and Outback XT. The same calibration requirement applies.\u003c\/p\u003e","vendor":"Nostrum High Performance","product_type":"High Flow Direct Injectors","created_at":"2026-07-24T13:03:18+01:00","handle":"nostrum-subaru-fa24-upgraded-direct-injectors","updated_at":"2026-09-08T16:28:14+01:00","published_at":"2026-07-24T17:57:58+01:00","template_suffix":null,"published_scope":"global","tags":"brand:nostrum-high-performance, cat:fuel, dept:performance-parts, fits:subaru-legacy, fits:subaru-outback, fits:subaru-wrx, make:subaru, Subaru, Subaru Ascent, Subaru Legacy, Subaru Legacy XT, Subaru Outback, Subaru Outback XT, Subaru WRX, type:high-flow-direct-injectors","variants":[{"id":54805988213078,"product_id":11142675661142,"title":"Default Title","price":"1740.58","sku":"H720-2106","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-07-24T13:03:18+01:00","updated_at":"2026-09-08T16:28:14+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":14231277437270,"product_id":11142675661142,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":83087873245526,"product_id":11142675661142,"position":1,"created_at":"2026-07-24T16:01:55+01:00","updated_at":"2026-07-24T16:01:58+01:00","alt":"Nostrum Subaru FA24 Upgraded Direct Injectors","width":386,"height":242,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/H720-2106_1__66357.1772064409.386.513_f1accd75-932b-4ea0-80b9-bee7dbcdbbd8.png?v=1784905318","variant_ids":[]}],"image":{"id":83087873245526,"product_id":11142675661142,"position":1,"created_at":"2026-07-24T16:01:55+01:00","updated_at":"2026-07-24T16:01:58+01:00","alt":"Nostrum Subaru FA24 Upgraded Direct Injectors","width":386,"height":242,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/H720-2106_1__66357.1772064409.386.513_f1accd75-932b-4ea0-80b9-bee7dbcdbbd8.png?v=1784905318","variant_ids":[]}}}