How much does this cost to the nearest dollar?

BD Diesel Performance Pressure Controller
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 Package Dimensions 22.352 L X 5.842 H X 16.764 W (Centimeters) Made In United States Package Weight 1.0 Pounds Product Type Auto Part Manufacturer BD Diesel Performance, Brand BD Diesel Performance, Model BD Diesel Performance Weight 1.6 ounces, model number Is Discontinued No, Exterior Painted, Manufacturer Part OEM Part Rank Automotive Automotive

Price is $390.00
Price: $389.95