HKS DB Mechanical 60mm Temperature Meter High-Performance Cooling or do I need an

or do I need an external relay

Also helps prevent dust and road debris from entering those gaps

Make Model Engine Years Front Pad Shape Rear Pad Shape BMW 5 Series (E60) 520i / 523i / 525i / 525d / 525xi 2

Complete wheel hub and bearing assembly for the front or rear axle

HKS DB Mechanical 60mm Temperature Meter High-Performance Cooling or do I need anHKS Direct Bright Meter is mechanical gauge with Light Emitting Diode type illumination. HKS Direct Bright (DB) Meters are Electro Luminescent version of the popular 60mm mechanical unit and is available for boost, pressure and temperature monitoring. DB meters are offered in either a white face with black text, or a black face with white text. The EL lighting technology emits a soft blue illumination that provides excellent visibility during night