Setting up your chassis and tweeking components before race day does not have to be a guessing game anymore. As soon as you set the wrenches down, you can get the performance readings you need to figure out if you are on the right path to having a perfectly balanced set-up. All you have to do is choose which mode you want to test on your D-Pic gauge - put your ride through it's paces and check out the results. It's like having your own personal test track at your disposal. D-Pic gauges are an easy and clean installation, needing only a power wire hook-up. The 2-1/16'' diameter gauge size allows you to mount them in a gauge pod, cup, panel, or even custom dash locations. Available in two styles, Ultra-Lite or Cobalt, to compliment your existing Auto Meter Gauges. Choose from 6 different performance measurements: Horsepower Mode Calculate peak horsepower at the wheels (whp) Compare the last recording to your best and realize performance effects of changes in your tune up. 1/4-Mile ET and Speed Record and view data for quarter mile acceleration. Review 1/4-mile speed and ET Check recorded peek G's on each pass to optimize your setup Reaction Time Practice and record reaction time in 1/4-mile acceleration mode 0 to 60 MPH Acceleration Time Measures 0-60 mph acceleration times with precision View peak G's from a run and perfect your tune up for peak acceleration Compare latest efforts to a saved best, and improve driving skills while monitoring how upgrades affect vehicle acceleration 60 to 0 MPH Braking Distance Precisely calculate the distance your vehicle needs to stop from 60 MPH Capture peak deceleration G's and begin to understand braking and traction thresholds Review and compare the last stop to your best and note how brake fade and modifications affect stopping distance Real - Time G's Choose to view forward (front - back) or lateral (left - right) axis instantaneous acceleration G-forces on the LED array and digital display LED array shows magnitude of G-force Instantaneous value in numeric digital reading below Peak memory recalls highest G's achieved both axes (all for direction) during real-time operation.