The Diode Dynamics interior LED bulb pack for 2015–2019 Subaru WRX STi upgrades interior lighting to blue LEDs, replacing vanity, map, trunk, dome, and license plate incandescent bulbs for a modern appearance. Stage 2 offers the biggest jump in light output. The plug-and-play kit includes the listed 28mm, 31mm, and 194 bulbs, reports measured lumen figures for true brightness comparison, and uses constant-current circuitry for reliable, low-flicker operation.
Diode Dynamics 15-19 Subaru WRX Interior Light Kit Stage 2 - Blue