Easy - to - Read DynaFact Gauge monitors turbocharger performance. Dynamically indicates boost output allowing the driver to target ideal boost setting. Superior Precision and Durability. Easy - to - Read DynaFact Gauge monitors turbocharger performance in diesels. Dynamically indicates boost output and allows driver to target ideal boost setting with 0 - 50 or 0 - 15 psi configurations. 1 - Year Limited Warranty. Mounting systems for all of our gauges are available. Boost Gauge Kit, 0 - 50 PSI, Mechanical for use with 1993 - 2002 Cummins 5.9L8.3L Motorhome