Prevents shudder and slippage; Rotary switch mounted on the dash; Increases mainline pressure by mimicking higher throttle positions; Prevents mid-range convertor shutter and clutch/band slippage; Ramps towards stock pressures as the pedal gets closer to full throttle; Reduces shift flare and gear hunting; Easily plugs in-line with factory sealed connectors; 3 different levels; Excellent for vehicles with performance modules!