Diode Dynamics DD3012 Tail-as-Turn + Backup Module Kit for 2015-2021 Subaru WRX

Vehicle Fitment

• 2015-2021 Subaru WRX / WRX STI (Base, Limited, Premium, Launch Edition, Series.HyperBlue, S209, Type RA) - 2.0L Turbocharged H4, AWD

Fitment Notes

• USDM clarity; module compatible with US-market LED tail light assemblies only
• Installation may vary if vehicle has OEM subwoofer wiring harness routed behind tail lights

Features

• Turns your factory LED tail lights into turn signals with clean plug-and-play modules
• Optional backup light conversion using old turn signal socket for additional white light visibility
• OEM-size connectors, no cutting or splicing factory wiring required
• Assembled in USA with Diode Dynamics' standard quality controls
• 3-year limited warranty covering modules and defects
• Operating over wide temperature range (approx -40 °C to 85 °C / -40 °F to 185 °F)
• Maintains factory tail, brake, backup light function without interference or flicker
• Low current draw to minimize strain on factory circuits

Specifications

• Operating Voltage: ~9-16 V DC compatible with Subaru WRX/STI electrical system :contentReference[oaicite:0]{index=0}
• Operating Temperature: -40 °C to +85 °C (-40 °F to +185 °F) :contentReference[oaicite:1]{index=1}
• Connectors: OEM-size plug-and-play modules, harness-style connectors to match factory tail light plugs :contentReference[oaicite:2]{index=2}
• Number of Modules: 2 (left & right side) :contentReference[oaicite:3]{index=3}
• Includes optional 7443 bulbs for old turn signal location, and 921 bulbs for existing backup location (if using backup conversion) :contentReference[oaicite:4]{index=4}
• Warranty Period: 3 years :contentReference[oaicite:5]{index=5}

Included Components

• 2x Tail-as-Turn modules (Left & Right)
• 2x 7443 bulbs for old turn signal socket (optional for backup conversion)
• 2x 921 bulbs for existing backup socket (optional)
• 1x Installation Guide

Product Description

The Diode Dynamics DD3012 kit is designed to upgrade the rear lighting functionality of your 2015-2021 Subaru WRX or WRX STI. By installing these plug-and-play modules, your tail lights will act as turn signals, giving a modern, cleaner visual cue compared to the stock configuration. The kit also includes the option to convert the old turn signal sockets into additional backup lights, improving visibility when reversing. All this is done without sacrificing your factory tail, brake, or backup lighting behavior.

Because the modules use OEM-size connectors, installation is straightforward and requires no cutting or splicing of factory harnesses. Vehicles with the OEM subwoofer behind the tail light panel may need slight adjustments during installation. Fitment is confirmed through 2021. 2022 and later WRX/STI fitment is **unconfirmed** at this time.