{"product":{"id":11142678217046,"title":"Nostrum Ford Mustang 2.3 EcoBoost Stage 2 Big Bore \u0026 Injector Bundle","body_html":"\u003ch2\u003eSummary\u003c\/h2\u003e\u003cp\u003eStage 2 is the Big Bore answer for a 2015-2023 Ford Mustang 2.3 EcoBoost that has moved past bolt-ons. It pairs the Big Bore high pressure fuel pump, flowing 63% more than the factory pump at 1.825 cc\/rev, with four high flow direct injectors rated 22% above stock at 19.7 g\/s at 100 bar, and adds the custom high pressure fuel line, hardware, installation guide and data sheet. This is the combination for cars running a bigger turbo or a built engine, where mid-range fuel demand outruns a smaller pump and the injectors need to keep up at the top of the rev range as well. Everything still runs through the factory direct injection system and the ECU's own diagnostics, so there is no methanol tank and no secondary injection controller in the way.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUpgraded-turbo 2.3 EcoBoost Mustangs where the factory fuel system is the limiting factor\u003c\/li\u003e\n\u003cli\u003eBuilt engines and drag or track cars asking for sustained fuel flow at high load\u003c\/li\u003e\n\u003cli\u003eE85 and high ethanol blends, which need far more volume than petrol for the same air\u003c\/li\u003e\n\u003cli\u003eOwners buying the pump and injectors together instead of upgrading in two rounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Spray Pattern Matters As Much As Flow\u003c\/h2\u003e\u003cp\u003eA bigger injector is not automatically a better one. If the spray geometry is wrong for the chamber, you get poor idle quality, worse drivability, more knock, soot and a harder car to calibrate, and fuel can wash the bore and dilute the oil. Nostrum designs these injectors around this engine's air motion and chamber shape, and tests every one before batching the set, so the tuner is working with a predictable, matched group of four rather than chasing cylinder-to-cylinder differences.\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 HPFP and direct injector bundle\u003c\/li\u003e\n\u003cli\u003eSKU: H186-1532\u003c\/li\u003e\n\u003cli\u003eVehicle Application: 2015-2023 Ford Mustang 2.3 EcoBoost\u003c\/li\u003e\n\u003cli\u003ePump: Big Bore, 63% more flow than factory, 1.825 cc\/rev\u003c\/li\u003e\n\u003cli\u003eInjectors: four high flow direct injectors, 22% more flow than stock, 19.7 g\/s at 100 bar\u003c\/li\u003e\n\u003cli\u003eMax operating pressure: 240 bar\u003c\/li\u003e\n\u003cli\u003eIncluded Items: Big Bore HPFP, four direct injectors, custom high pressure fuel line, hardware, installation guide, data sheet\u003c\/li\u003e\n\u003cli\u003eUses the factory low-pressure feed line\u003c\/li\u003e\n\u003cli\u003eRequired: a supporting calibration, which is not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment And Setup Checks\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCovers the 2015-2023 Mustang 2.3 EcoBoost. Check the year and engine before ordering and let us know about imports or existing modifications.\u003c\/li\u003e\n\u003cli\u003eA tune is required. Get the calibration booked around the install so the car is not driven on a stock map with upgraded fuelling hardware.\u003c\/li\u003e\n\u003cli\u003eThe pump half is also sold on its own as the \u003ca href=\"\/products\/nostrum-2-3l-ecoboost-mustang-big-bore-high-pressure-fuel-pump-kit\"\u003eBig Bore HPFP kit\u003c\/a\u003e if you already have injectors.\u003c\/li\u003e\n\u003cli\u003eEthanol content varies by season and supplier, so an ethanol sensor is worth planning if you switch between fuels regularly.\u003c\/li\u003e\n\u003c\/ul\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 bundle: Big Bore HPFP and direct injectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eH186-1532\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Application\u003c\/td\u003e\n\u003ctd\u003e2015-2023 Ford Mustang 2.3 EcoBoost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump flow increase\u003c\/td\u003e\n\u003ctd\u003e63% over factory, 1.825 cc\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInjector flow increase\u003c\/td\u003e\n\u003ctd\u003e22% over stock, 19.7 g\/s at 100 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInjector count\u003c\/td\u003e\n\u003ctd\u003eFour direct injectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax operating pressure\u003c\/td\u003e\n\u003ctd\u003e240 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eFully laser-welded stainless pump, custom high pressure line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded items\u003c\/td\u003e\n\u003ctd\u003eBig Bore HPFP, four injectors, custom high pressure fuel line, hardware, install guide, data sheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eNostrum Limited Lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDo I need Stage 2 if the turbo is still standard?\u003c\/h3\u003e\u003cp\u003eUsually not. A stock-turbo car is well covered by the \u003ca href=\"\/products\/nostrum-2-3-ecoboost-mustang-stage-1-plus-bundle\"\u003eStage 1 Plus bundle\u003c\/a\u003e, which uses the same injectors with the smaller Standard Bore Plus pump.\u003c\/p\u003e\u003ch3\u003eIs anything else needed to make the injectors work?\u003c\/h3\u003e\u003cp\u003eThey are drop-in for this engine and run on the factory harness and rail, so the work is mechanical plus the calibration. No secondary controller or additional wiring loom is part of the job.\u003c\/p\u003e\u003ch3\u003eWhat should I ask my tuner for?\u003c\/h3\u003e\u003cp\u003eAsk them to calibrate for the new pump displacement and injector flow together, using Nostrum's tuning guide and the supplied injector data sheet as the starting point rather than generic tables.\u003c\/p\u003e","vendor":"Nostrum High Performance","product_type":"Fuel Systems","created_at":"2026-07-24T13:04:01+01:00","handle":"nostrum-2-3l-ecoboost-mustang-stage-2-bundle","updated_at":"2026-09-08T21:58:53+01:00","published_at":"2026-07-24T17:58:22+01:00","template_suffix":null,"published_scope":"global","tags":"brand:nostrum-high-performance, cat:fuel, dept:performance-parts, fits:ford-mustang, fits:ford-mustang-ecoboost-2-3l, Ford, Ford Mustang, Ford Mustang EcoBoost, make:ford, type:fuel-systems","variants":[{"id":54805995815254,"product_id":11142678217046,"title":"Default Title","price":"3495.94","sku":"H186-1532","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-07-24T13:04:02+01:00","updated_at":"2026-09-08T21:58:53+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":14231280550230,"product_id":11142678217046,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":83087875408214,"product_id":11142678217046,"position":1,"created_at":"2026-07-24T16:02:08+01:00","updated_at":"2026-07-24T16:02:10+01:00","alt":"Nostrum 2.3L Ecoboost Mustang Stage 2 Bundle","width":386,"height":386,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/H186-1532__73273.1744647760.386.513_d8a63e70-dd13-42a8-885e-5838b8fbfb35.png?v=1784905330","variant_ids":[]}],"image":{"id":83087875408214,"product_id":11142678217046,"position":1,"created_at":"2026-07-24T16:02:08+01:00","updated_at":"2026-07-24T16:02:10+01:00","alt":"Nostrum 2.3L Ecoboost Mustang Stage 2 Bundle","width":386,"height":386,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/H186-1532__73273.1744647760.386.513_d8a63e70-dd13-42a8-885e-5838b8fbfb35.png?v=1784905330","variant_ids":[]}}}