This wiring harness allows you to easily install the F1-style brake lamp on your late model Subaru. Note that different cars have different wiring pinouts, so prepare to use your trusty multi-meter to figure out what wires you need to connect to your lamp.
Fits all 2015-2021 Subaru WRX and STI sedan, plus all Crosstrek XV, and many late-model Imprezas.