Autometer Gauge GPS Speedometer 3-3/8in 140 MPH Marine Carbon Fiber Gauge 200638-40 Tonneau Covers Compatible with both N54 twin

Compatible with both N54 twin turbo and N55 single turbo engines

Your current housing stays on the door—just swap the glass

Check your owner's manual or existing lug nut specs to confirm compatibility

your scan tool can force a retest if you're impatient

Tool box with integrated lock and keys

Autometer Gauge GPS Speedometer 3-3/8in 140 MPH Marine Carbon Fiber Gauge 200638-40 Tonneau Covers Compatible with both N54 twinSpeedometer Gauge MARINE CARBON FIBER The latest in technology and the easiest possible way to add a highly accurate speedometer to your boat! AutoMeter GPS speedometers are capable of working with most aftermarket GPS antenna receivers or with AutoMeter's 5283 GPS antenna. AutoMeter's ultra fast, omnidirectional micro antenna is available separately for true plug and play functionality and never requires calibration. Configurable Rally Nav display