Traditional incandescent lighting illuminates around the perimeter of the dial;Auto Meter's race proven mechanical instruments provide trusted accuracy while being simple to install;No electrical system required for gauge operation - compatible with every street or race vehicle;Mechanical movements provide accuracy and durability even in the harshest environments;Gauge kit includes 1/8 nylon line, 1/8 NPT compression fittings, 1/4 NPT adapter, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation

• Auto Meter 4305 Ultra-Lite Mechanical Boost Gauge

Auto Meter 4305 Ultra-Lite Mechanical Boost GaugeAuto Meter