LEDs have a different resistance than regular bulbs, which will cause your turn signals to blink extra-fast. If you don't want this, install this replacement blinker unit, which is designed to work with LEDs. You only need one blinker module per car. Also, this blinker module works with two LED turn signals OR four, so it would still work if you happen to ever install LEDs in the rear of your car too. Install note: To find the turn signal blinker module, turn on your hazard lights and stick your head down under the driver's side footwell. You'll hear it clicking away. To install the new module, just unclip the wiring harness from the old module and plug it in to the new one. Zip-tie the new module safely out of the way. We suggest not trying to remove the old module; it hardly weighs anything and it's hard to get it out of there. Note that after installation of this blinker module, your lights may not flash, or they may only flash very briefly, when you trigger the remote locking. This is normal.

This flasher unit fits 2008-2021 Subaru WRX and WRX STI models, plus BRZ and Scion FR-S. It does NOT fit earlier Subaru cars.