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Air and Fuel› Fuel Injection Systems and Components - Electronic

Maperformance

1750cc Top-Feed Fuel Injectors

$1,339.80 $1,218.00 Save $121.80

SKU: IDX1750.48.11.WRX.4

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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Injector Dynamics 1750cc Fuel Injectors are a set of four top-feed injectors designed for Subaru WRX and STI models. These injectors are engineered in partnership with Bosch Motorsport and are compatible with a range of fuels, including alcohol, ethanol, race fuels, and gasoline.
Show original supplier description
The Injector Dynamics 1750cc Fuel Injectors (part number IDX1750.48.11.WRX.4) are a high-performance upgrade designed for Subaru WRX and STI vehicles equipped with EJ20 or EJ25 engines. These top-feed injectors, developed in collaboration with Bosch Motorsport, offer a significant fuel delivery increase to support moderate engine modifications. Constructed with all stainless steel internals, these injectors are built for durability and compatibility with various fuel types, including alcohol, ethanol, race fuels, and regular gasoline. They are rated for a normal flow rate of 1725cc/min at 3.0 BAR (43.5 psi) and a maximum differential fuel pressure of 7.0 BAR (101.5 psi). The injectors utilize a USCAR electrical connector and come with necessary clips and pins. While not a direct plug-and-play solution, adapters can be used for installation. These injectors are specifically listed as compatible with Subaru WRX models from 2002-2014 and STI models from 2007-2021. It's important to note that they are not legal for sale or use in California on emissions-controlled vehicles. Proper tuning and potentially additional adapters may be required for installation to ensure optimal performance and system compatibility.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandMaperformance
Part NumberIDX1750.48.11.WRX.4
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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