Mopar Performance Gauges - Created using race proven Auto Meter components, Mopar Performance Gauges are now infused with superior LED through-the-dial O.E. quality lighting, to provide 'at-a-glance' readings day or night. Full Sweep Electronic. Powered by digital, microprocessor-controlled, rugged stepper motor drives and laboratory-grade sending units, Full Sweep Electric Gauges are the BEST gauges available. Extreme durability and readability of 270-degree sweep mechanical gauges is combined with easy installation and safe operation of short sweep electrics fit rack-tested and race-proven, these units employ precision senders to keep hazardous fluids out of the driver compartment and to perform gauge calibration and sensor diagnostics at power-up for extreme accuracy every time. Most units are compatible with Auto Meter Data Logger, for the ultimate race info center. Mechanical Bronze Bourdon tube, 270-degree sweep movements, and durable nylon gearing have made these rugged and long lasting gauges a proven high-performance favorite for more than 25 years. These mechanical gauges require no electrical power for operation, which makes them an ideal choice for vehicles with no- or low-powered electrical systems.