How much does this cost to the nearest dollar?

Banks 61022 Six Gun Diesel Tuner
PRODUCT DETAILS Easy Install Loaded with Features Value Priced Destroys the competition, not your vehicle ActiveSafety protects engine/powertrain Gain up to 105 HP, 258 ft/lbs TQ at rear wheels Optimum fuel tuning for awesome power Temperature limiting control w/opt Temp Limit Kit 63077 Six-Gun diesel tuner with switch Emissions compliant CARB EO DESCRIPTION Optimum fuel tuning for awesome power, built-in safety and adjust-on-the-fly power. Calibrated for sport, Six-Gun is a fully engineered diesel tuner with an unmatched combination of power, safety and versatility. It delivers pavement-shredding best gains of +105 hp and +258 lb-ft at the rear wheels. Has 6 change-on-the-fly power levels.

Price is $642.00

Price: $642