The Diode Dynamics lighting control module converts the LED tail lights on Subaru Legacy (2015–2019) to also function as turn signals. It uses OEM tail light connectors for simple plug‑and‑play installation, installs in minutes with no wiring, and is assembled in the USA. The kit includes two modules, two 7443 HP48 bulbs for the original turn locations, and an installation guide; it does not convert the old turn location into backup lights.
Diode Dynamics 15-19 Subaru Legacy Tail as Turn +Backup Module (USDM) Module Only