1650cc Subaru WRX STi Fuel Injectors - Bosch EV14 (Includes PNP Harness)

Maximum Fuel Delivery for Elite Subaru Builds

The SouthBay 1650cc injector kit is the definitive choice for Subaru WRX and STi owners aiming for professional-level power. By utilizing the latest Bosch EV14 platform, these injectors provide a massive flow rate while maintaining the precision needed for a stable idle and smooth part-throttle transitions—crucial for high-horsepower street and track cars.

Why Choose SouthBay 1650cc Injectors?

• Plug-and-Play (PNP) Integration: We simplify the install by including PNP wire adapter harnesses that connect directly to your factory Subaru injector clips.

• Bosch EV14 Precision: Modern internal architecture provides faster response times and superior atomization compared to older, modified high-flow designs.

• Race Fuel & E85 Ready: Constructed with corrosion-resistant stainless steel internals, these units are fully compatible with E85, ethanol blends, and racing fuels.

• Tuning Data Included: Every set comes with access to comprehensive tuning data (latency and dead time) and flow matching sheets, hosted right here on our website.

• Dynamic Flow Matching: Each set of 4 is flow-matched within 1%–2% to ensure maximum engine safety and optimal cylinder-to-cylinder balance.

Technical Specifications:

• Flow Rate: 1650cc/min @ 43.5 PSI.

• Impedance: High Impedance (Saturated).

• Connector Type: USCAR / EV6 / EV14 (Subaru PNP adapters included).

• Internals: All Stainless Steel.

4. Fitment Guide

These are Top Feed injectors designed for the Subaru 2.5L Turbo DOHC (EJ255 / EJ257) engines:

• 2007–2021 Subaru WRX STi

• 2006–2014 Subaru WRX (Top Feed models)

• 2006–2013 Subaru Forester XT

• 2007–2012 Subaru Legacy GT