THESE LED BULBS: will replace any 1157 series bulb. Here is the bulb cross reference guide for this product: BAY15D, 1154, 2057, 2357, 2397, 3497, 1016, 1034, & 7528.

THE CARBIDE SERIES LED REPLACEMENT BULBS FROM GTR LIGHTING: were originally designed to be the brightest option in the world and today with the version 2.0 they're even brighter! Because these bulbs are the brightest option available today you will experience greater safety from a brighter light, better performance through built-in CANBUS integration, and better style with the beautiful colors created by the custom built LED chips!

NOT JUST THE BRIGHTEST: but also the easiest! In the past you had to wire in resistors to your turn signal bulb circuits in order to trick the computer into thinking that your LED bulbs were the same thing as your old dim bulbs. Not anymore! The new Carbide Series 2.0 bulbs have a built-in CANBUS-integration circuit that works with 95% of all cars, trucks, and motorcycles on the road today! Gone are the days of wiring in resistors, or replacing flasher modules. These new LED bulbs are truly plug and play, and one of the brightest and most reliable options around.