GCS CS Style F1 Rear Fog Light Subaru WRX / STI 2015-2021 / Crosstrek 2013-2017

Fitment Information: This rear fog light fits 2015 - 2021 Subaru WRX, 2015 - 2021 Subaru STi, and 2013 - 2017 Subaru Crosstrek. USDM vehicles usually come from the factory with just a plastic cap covering the rear bumper center instead of a rear fog light. The GCS CS - Style F1 LED Rear Fog Light adds extra lighting and a cool style to the rear of your 2015 - 2021 WRX and STI! This F1 lamp serves as both a fog light and a brake light. The brake light has an F1 - Style flasher function, giving your custom Subaru a racing look. You can choose from several different lens and housing colors to get the perfect match. It has multiple wiring options for different functions. Installation requires minor splicing, and a plug - and - play harness is available separately. The F1 brake light function works when the fog light is on. Wiring details: Red Wire is for Brake Light Positive, Black Wire is for Ground / Negative, and Green Wire is for Running Light Positive. Note that the F1 brake function only works when the fog light is in use and the running light is on. For the Crosstrek, the wiring can be routed directly to the tail light with connectors outside the vehicle. What's Included: F1 Style Fog Light Assembly and Mounting Hardware. You can buy the Noble Performance Plug and Play F1 Light Harness separately if needed.

Using your GCS CS - Style F1 Rear Fog Light is easy. First, make sure your vehicle is one of the compatible models: 2015 - 2021 Subaru WRX, 2015 - 2021 Subaru STi, or 2013 - 2017 Subaru Crosstrek. When installing, you'll need to do a bit of minor splicing. If you don't want to deal with that, you can buy a plug - and - play harness separately. Connect the wires as follows: the red wire to the brake light positive, the black wire to the ground or negative, and the green wire to the running light positive. Remember, the F1 brake light function only works when the fog light is on and the running light is also on. For the Crosstrek, you can route the wiring directly to the tail light connectors outside the vehicle. To maintain your fog light, keep it clean by wiping it with a soft cloth regularly. Avoid using harsh chemicals that could damage the lens or housing. Check the wiring connections from time to time to make sure they're secure. If you face any issues, you can always contact customer support for help.