On-car vehicle validation testing ensures product fits and functions properly Units are disassembled, inspected 100%. Ensures every component is remanufactured, replaced or cleaned as required. Cleaning and reman process ensures that the throttle bore surface is not deformed or contaminated to ensure optimum air flow. Every unit is 100% computerized tested for motor, throttle position sensor and articulation to ensure quality and reliability NOTE: Core charge included in price.