{"product_id":"injector-dynamics-1750-xds-48mm-length-mach-11mm-top-wrx-spec-denso-low-cushionset-of-4","title":"Injector Dynamics ID1750-XDS Fuel Injectors for Subaru WRX and STI - Set of 4","description":"\u003ch4\u003eInjector Dynamics ID1750-XDS Injectors in the Subaru WRX Lower Configuration, Matched Set of Four\u003c\/h4\u003e\u003cp\u003eThe WRX in this part number is not a marketing flourish. Injector Dynamics uses it as the configuration code for the lower interface, and the number reads as a 48 mm body with a machined 11 mm top and the Subaru-specific lower arrangement. The importer data behind this listing describes that lower as a Denso-style low cushion, which is the seat the Subaru rail expects rather than a plain O-ring.\u003c\/p\u003e\u003cp\u003eThat geometry is the whole point of the part. Four Subaru applications share it: the WRX from 2002 to 2014, the STI from 2007 to 2020, and the Legacy GT and Forester XT from 2007 to 2011. Get the lower cushion wrong and the injector either will not seat in the rail or will not seal in the head, which is why the configuration code matters more here than on the plain 14 mm sets.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThe Subaru-specific lower configuration Injector Dynamics designates as WRX in the part number, not a generic 48 mm injector\u003c\/li\u003e\n\u003cli\u003eListed for the WRX 02-14, STI 07-20, and Legacy GT and Forester XT 07-11\u003c\/li\u003e\n\u003cli\u003eMachined 11 mm top rather than an adapter top, paired with the low cushion the Subaru rail expects\u003c\/li\u003e\n\u003cli\u003eMatched set of four, consistent with the manufacturer's published per-set pricing for this number\u003c\/li\u003e\n\u003cli\u003eRated at 1728 cc\/min at 3.0 bar (43.5 psi) on E10 emissions certification fuel, with a published maximum differential fuel pressure of 7.0 bar\u003c\/li\u003e\n\u003cli\u003eCompatible with methanol, ethanol, MTBE, nitromethane and all known hydrocarbon fuels, with a USCAR electrical connector\u003c\/li\u003e\n\u003cli\u003ePublished dynamic flow and offset data from 8 to 16 volts across the working pressure range, for direct entry into an engine management system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2014\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003ePublished as WRX (02-14); tagged as Impreza WRX for 2002-2014 to match how the storefront records that car\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2020\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eSTI\u003c\/td\u003e\n\u003ctd\u003ePublished as STi (07-20); tagged in two parts, as Impreza WRX STI to 2014 and WRX STI from 2015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2011\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eLegacy GT\u003c\/td\u003e\n\u003ctd\u003ePublished as Legacy GT \/ Forester XT (07-11)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2011\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eForester XT\u003c\/td\u003e\n\u003ctd\u003ePublished as Legacy GT \/ Forester XT (07-11)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eEvery row here carries a bounded year range against a real make and model, so all four become fitment tags. The STI range is split at the 2015 model change because the storefront records the earlier car as an Impreza WRX STI and the later one as a WRX STI. No engine code appears in any tag; the EJ-series requirement is a matter for the rail and the calibration, not for a searchable fitment record.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eInjector Dynamics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eID1750-XDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd\u003e1750.48.11.WRX.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration code\u003c\/td\u003e\n\u003ctd\u003e48.11.WRX as published by Injector Dynamics for the Subaru rows\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e48 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop interface\u003c\/td\u003e\n\u003ctd\u003eMachined 11 mm top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLower interface\u003c\/td\u003e\n\u003ctd\u003eSubaru WRX configuration, described in the importer data as a Denso-style low cushion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet quantity\u003c\/td\u003e\n\u003ctd\u003eFour injectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal flow rate\u003c\/td\u003e\n\u003ctd\u003e1728 cc\/min at 3.0 bar (43.5 psi), measured on E10 emissions certification fuel at 49 C (120 F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum differential fuel pressure\u003c\/td\u003e\n\u003ctd\u003e7.0 bar (101.5 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible with methanol, ethanol, MTBE, nitromethane and all known hydrocarbon fuels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical connector\u003c\/td\u003e\n\u003ctd\u003eUSCAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign intent\u003c\/td\u003e\n\u003ctd\u003eDesigned specifically for motorsport use, per Injector Dynamics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eOne year from date of original purchase against manufacturer defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaged contents and weight\u003c\/td\u003e\n\u003ctd\u003eNot published by Injector Dynamics for this part number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFour Injector Dynamics ID1750-XDS fuel injectors in the 1750.48.11.WRX.4 configuration, supplied as one dynamically matched set.\u003c\/li\u003e\n\u003cli\u003eThe manufacturer documents no packaged contents for this number. Plan the job around the injectors alone and source any seals, spacers or wiring parts on their own.\u003c\/li\u003e\n\u003cli\u003eThe offset and slope tables that the engine management system needs are published by the manufacturer separately from the product itself.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Injector Dynamics\u003c\/h4\u003e\u003cp\u003eEverything Injector Dynamics publishes about the ID1750-XDS is organised around exact application rows. That is why two sets that look identical on a shelf can carry different numbers: the differences live in the interfaces, not in the flow rating, which is the same across the family.\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/injector-dynamics-1050x-injectors-wrx-16b-bottom-adaptors-11mm-red-adaptors-set-of-4\"\u003eInjector Dynamics ID1050-XDS in the WRX lower configuration, set of four\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/injector-dynamics-1340cc-injectors-48mm-length-11mm-gold-top-denso-and-204-low-cushion-set-of-4\"\u003eInjector Dynamics ID1300-XDS in the WRX lower configuration, set of four\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/injector-dynamics-2600-xds-injectors-48mm-length-11mm-top-wrx-bottom-adapter-set-of-4\"\u003eInjector Dynamics ID2600-XDS in the WRX lower configuration, set of four\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/injector-dynamics-o-ring-seal-service-kit-for-injector-w-11mm-top-adapter-and-wrx-bottom-adapter-1\"\u003eInjector Dynamics O-ring and seal service kit for 11 mm top and WRX bottom\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/injector-dynamics-11mm-top-o-ring-for-id-adapter-tops\"\u003eInjector Dynamics 11 mm top O-ring for adapter tops\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhich flow number should be used when sizing the build?\u003c\/strong\u003e\u003cp\u003eStart from the published 1728 cc\/min at 3.0 bar, then correct for the base pressure the fuel system actually runs.\u003c\/p\u003e\u003cstrong\u003eWhat differential pressure are they rated for?\u003c\/strong\u003e\u003cp\u003e7.0 bar, or 101.5 psi, per the manufacturer specification table.\u003c\/p\u003e\u003cstrong\u003eWhat does the manufacturer say about fuel compatibility?\u003c\/strong\u003e\u003cp\u003eCompatible with methanol, ethanol, MTBE, nitromethane and all known hydrocarbon fuels.\u003c\/p\u003e\u003cstrong\u003eWhat is the connector type?\u003c\/strong\u003e\u003cp\u003eUSCAR, which is the connector Injector Dynamics specifies across the ID1750-XDS range.\u003c\/p\u003e\u003cstrong\u003eWhat does dynamically matched mean?\u003c\/strong\u003e\u003cp\u003eInjector Dynamics groups injectors so their dynamic flow behaviour tracks together across the operating range.\u003c\/p\u003e\u003cstrong\u003eWhat voids the coverage?\u003c\/strong\u003e\u003cp\u003eFailures caused by the wrong fuel type or inadequate filtration, and failures that follow ignoring the manufacturer's fuel and maintenance warnings.\u003c\/p\u003e\u003cstrong\u003eDoes the manufacturer service its own injectors?\u003c\/strong\u003e\u003cp\u003eIt does, through a cleaning and inspection service that identifies injectors by the serial number at the connector base.\u003c\/p\u003e\u003cstrong\u003eWhat data does the tuner need?\u003c\/strong\u003e\u003cp\u003ePublished offset values at 8, 10, 12, 14 and 16 volts and the flow slope across the pressure range.\u003c\/p\u003e\u003cstrong\u003eWhat does the manufacturer say about legality?\u003c\/strong\u003e\u003cp\u003eNothing that establishes street use. The published positioning is motorsport, and no jurisdiction-specific approval is documented.\u003c\/p\u003e\u003cstrong\u003eWhat does WRX mean in the part number?\u003c\/strong\u003e\u003cp\u003eIt is Injector Dynamics' configuration code for the Subaru lower interface on a 48 mm body with an 11 mm top. It identifies geometry, not just a car.\u003c\/p\u003e\u003cstrong\u003eWhich Subaru models are listed?\u003c\/strong\u003e\u003cp\u003eWRX from 2002 to 2014, STI from 2007 to 2020, and Legacy GT and Forester XT from 2007 to 2011.\u003c\/p\u003e\u003cstrong\u003eDoes this fit the 2004-2006 STI?\u003c\/strong\u003e\u003cp\u003eNot under this number. Injector Dynamics lists the 04-06 STi against a separate top-feed conversion part number, so the two are not interchangeable.\u003c\/p\u003e\u003cstrong\u003eIs the lower a plain O-ring?\u003c\/strong\u003e\u003cp\u003eNo. The importer data for this listing describes a Denso-style low cushion, which is why the WRX configuration exists as its own part number.\u003c\/p\u003e\u003cstrong\u003eWill these drop into a 2015 and later WRX?\u003c\/strong\u003e\u003cp\u003eThe manufacturer's WRX row ends at 2014 and the STI row runs to 2020. Match the row to the exact car rather than to the badge.\u003c\/p\u003e\u003cstrong\u003eDoes the 48 mm figure come from the manufacturer?\u003c\/strong\u003e\u003cp\u003eThe numeric segments correspond to the manufacturer's configuration code, and the 48 mm length wording comes from the importer data used to build this listing. Injector Dynamics does not publish a dimensional drawing against this number.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003cp\u003eThe manufacturer publishes no procedure or torque table for this configuration, so the sequence below is deliberately limited to documented guidance plus a pointer to the factory service information.\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConfirm that part number 1750.48.11.WRX.4 is the configuration Injector Dynamics lists for the Subaru WRX 02-14, STI 07-20, and Legacy GT and Forester XT 07-11 before anything is removed from the engine.\u003c\/li\u003e\n\u003cli\u003eLog each injector's four to seven digit serial number now; it is the identifier the manufacturer uses for warranty and service claims.\u003c\/li\u003e\n\u003cli\u003eWith the system depressurised and isolated, work through the factory rail-removal procedure step by step.\u003c\/li\u003e\n\u003cli\u003eResist cutting the plastic O-ring retainer off. Once it is gone it cannot be refitted, and the manufacturer warns of catastrophic engine damage on the wrong application.\u003c\/li\u003e\n\u003cli\u003eCheck that the injector seats fully in the rail and in the port with the 48 mm and its listed interfaces before committing to the install.\u003c\/li\u003e\n\u003cli\u003eBuilding the plugs means stripping approximately 5 mm, seating the wire through the seal into the terminal, aligning the conductor with the crimp section and crimping.\u003c\/li\u003e\n\u003cli\u003eThere is no correct pin order for power and ground here; the manufacturer states polarity is not specific.\u003c\/li\u003e\n\u003cli\u003eTighten the rail and related hardware strictly to the engine manufacturer's published torque values; the injector supplier documents none.\u003c\/li\u003e\n\u003cli\u003eDo not start the engine until the current ID1750-XDS dynamic flow and offset values are in the calibration.\u003c\/li\u003e\n\u003cli\u003eWith the engine still stopped, pressurise and inspect all unions and seals, and check the filtration standard the warranty depends on.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Injector Dynamics","offers":[{"title":"Default Title","offer_id":46380803194959,"sku":"IDX1750.48.11.WRX.4","price":1325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/injector-dynamics-id1750-xds-fuel-injectors-for-subaru-wrx-and-sti-set-of-4-injector-dynamics.jpg?v=1786381139","url":"https:\/\/www.blackopsautoworks.com\/products\/injector-dynamics-1750-xds-48mm-length-mach-11mm-top-wrx-spec-denso-low-cushionset-of-4","provider":"Black Ops Auto Works","version":"1.0","type":"link"}