Defi makes some of the most high tech best looking gauges in the world! The BF Series is similar to the Link gauges but has a unique "masked" look that hides the gauge face until the car is started. Then you are treated with startup and shutdown sequences. These gauges are more expensive than the Link gauges due to the special lens used to create the masked look of the face. - 2 3/8" (60mm) size - Gorgeous Opening mode and Closing mode - Driving data can be stored up to 3 minutes and can be replayed - Double warning function by LED Lamp and a beep - Unique "masked" look that hides the gauge face while car is off - Defi BF Gauge Requires the use of the Control Unit II seen below (sold separate)