AutoMeter Ecometer/Universal OBDII Control Arm Shims 1979-1995 GMC K3500

1979-1995 GMC K3500

ATI harmonic Super Dampers add horsepower and torque to race

plug and play device that connects to your vehicle's OBDII port and allows for instantaneous monitoring of the exact fuel economy of your vehicle

1/8 in NPT Male Thread

carbureted applications on gas or methanol

AutoMeter Ecometer/Universal OBDII Control Arm Shims 1979-1995 GMC K3500The single largest contributing factor to fuel economy on your vehicle is the ? loose nut behind the wheel?. Driver input affects the amount of fuel you use more than anything else. The Ecometer by AutoMeter is a simple, plug and play device that connects to your vehicle's OBDII port and allows for instantaneous monitoring of the exact fuel economy of your vehicle. So much more than a simple vacuum gauge, the Ecometer monitors a huge range of engine