Diode Dynamics C2R 4th brake light kit for 2012–2017 Subaru Crosstrek and Impreza swaps the blank bumper trim for a compact LED pod that serves as a high-power reverse light, a 4th brake light with optional F1-style flash, and a red running light. The kit uses custom-engineered TIR optics, mounts flush with an OEM-style bracket, and includes a plug-and-play wiring harness for simple installation.
Diode Dynamics 12-17 Subaru Crosstrek / Impreza C2R 4th Brake Light Kit