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Unlike open-element designs that can suffer from heat soak
Material: Premium blend for durability and everyday wear
Grab a fresh set rated for stainless to ensure a leak-free seal
If you prefer a finished appearance to match your engine bay or want UV protection
AEM Electronics 52mm Digital Boost Gauge 50 PSI BMW M140i (F20/F21) Unlike open-element designs that canAEM's Digital Boost Gauge offers unsurpassed accuracy, speed and control with an easy to read, digital interface. The 0 5v analog output can be used with data loggers and virtually any engine management system, such as the AEM EMS or FIC. The included AEM 5 bar brass sensor makes this gauge among one of the fastest and most accurate gauges available. The bright LED display shows pressure in 1 PSI increments, and the sweeping LED "needle" lines the