If you use either the LED Front Turn Signal Bulbs or LED Rear Turn Signal Bulbs you will need to use this relay to prevent "hyperflash", the phenomenon that happens when using LED bulbs with a traditional turn signal relay.

Please note: While there are great benefits to upgrading your stock bulbs to LEDs (greater light output, longer lifespan, less amperage draw, no excessive heat), the only problem that we have come across is that installing both front and rear LED turn signal bulbs will not work in conjunction properly. One or both will either hyperflash, not flash at all, dimly flash (or some other symptom), even with this relay. We think that is it related to the low power draw, since reinstalling the stock bulbs on either front or rear cause the remaining LED bulbs to function perfectly, but we admit we are not entirely sure. The search for compatible LED turn signal bulbs continues, but as such, we recommend purchasing either LED front OR rear turn signal bulbs at the moment if you are going in this direction.