GET GET RX1 LCGPA W/BUTTON GK-LCGPA-0002Designed for use with the GET RX1 power ECU for 2016 17 model applications only (sold separately), Display also works as the GPA level indicator once the launch control system is disabled, Guides you to the perfect launch rpm to get the most out of your starts, Mode button and wiring loom extension also available separately, Bright, easy to read LED display displays the rpms, Can be easily adjusted