The Diode Dynamics interior LED bulb pack for 2015–2019 Subaru WRX STi refreshes cabin lighting with red LEDs while replacing vanity, map, trunk, dome, and license plate incandescent bulbs. Stage 1 gives a milder color change and slightly higher output than stock. The plug-and-play package includes the correct 28mm, 31mm, and 194 bulbs and is built with measured lumen ratings and robust circuitry to ensure longevity and steady illumination.
Diode Dynamics 15-19 Subaru WRX Interior Light Kit Stage 1 - Red