Exterior Components› Lights and Components
SubiSpeed
***Discontinued******Discontinued******Discontinued***SubiSpeed F1 Plug and Play Harness (4 wire) - 2015-2020 WRX STI
SKU: S03J F1PNPSS-4WIRE
Beginner — under 30 min
Description
This harness connects directly between the tail light and the OEM harness, preventing the need to splice into your vehicle's factory wiring. It is compatible with various rear fog lamps, including SubiSpeed F1 Fog Lights, JDM OEM Rear Fog Lamps, GCS Rear Multifunction Lights, and GCS CS Style Rear Fog/F1 Brake Lights.
Fitment
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Available on iOS & Android
Specifications
| Brand | SubiSpeed |
| Part Number | S03J F1PNPSS-4WIRE |
Buy with Confidence
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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