Switchback LED Bulbs. By simply installing a "Switchback" LED Turn Signal Conversion Kit you will improve the exterior lighting and appearance of your S550 Mustang. This conversion kit replaces those weak incandescent stock amber bulbs with super bright dual-color LEDs for a unique custom look. The dual-color feature allows you to use the white LEDs for the running/parking lights, but when you activate your turn signals or hazard lights the LEDs change to amber like magic.

Kit Includes. This LED Turn Signal Conversion Kit comes complete and includes a pair of two "Switchback" front turn signal bulbs and a pair of two white front side marker bulbs.

Plug-and-Play Installation. Installation of the Switchback Turn Signal Conversion Kit is 100% plug-and-play. There is no cutting, splicing or resistors required, just replace your factory incandescent bulbs with the ones in the kit. It's that easy!

Note About Operation. Seeing that Ford redesigned the circuitry of the all new S550 Mustangs, you will not need a resistor to slow the turn signal blinking rate. The exterior turn signals will blink at the same speed as they did before, however the interior dash indicator will blink at a different rate.

Application. This Switchback Turn Signal Conversion Kit is specifically designed for use on the 2015 to 2017 Ford Mustangs, including the V6, EcoBoost, GT and Shelby GT350 models. Recommended for use with clear turn signal housings.

Application Note. This Axial Switchback Kit is designed for Mustangs sold in the US market. They will not function properly on Mustangs sold in the EU or UK.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov