Mode and up/down pushbutton switches make fuel trim adjustments in the rpm and throttle position ranges required by most applications; fuel trim value is displayed on a bright daylight-readable LED display Compatible with Twin Scan II+ Tuning Aid - install the Twin Scan II+ and ride the bike, then copy the air/fuel ratio corrections calculated by the Twin Scan II+ into the PC Link Tuner software Allows easy adjustments to OEM Delphi fuel-injection systems to improve performance and match the requirements of performance parts May be compatible with other controller maps Compact size - only 4" L x 2" W x .5" H Easy plug-in installation and setup Made in the U.S.A.. CONTROLLER T-TUNER BUELL