Users of our products can become accustomed to additional power and torque over several months or years of ownership. First we would suggest to check the LED on the tuning box receives power. Press it to adjust up or down one to test. This information will be important later should you need to contact us. Second we would suggest to uninstall the product and see if you notice a degradation in vehicle performance. If with the box removed you feel performance is unchanged then please contact our customer services department, it may be that your unit has developed a fault.