3156/3157 Non-CK: GTR Carbide Canbus 2.0 LED (Switchback)

NOTE: Do you have CK style wiring or Standard? These bulbs will only work with Standard style wiring. These LED bulbs: will replace any T20 based 3156/3157 series bulb, here is the bulb cross reference guide for this product: 3057, 3157, 3457, 4057, 4157 & T20 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-i