APR Universal Mechanical Boost Gauge System (Blue)

The APR Universal Mechanical Boost Gauge System is sold with a blue needle.
This is a universal setup that requires an end user supplied mounting system. The gauge requires a boost tap to supply a boost pressure and vacuum signal the gauge.
Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.