Yes, you can install your own accessories, but you will need to inform us beforehand and get an email confirmation from us. You will be installing these accessories at your own cost. While returning the car, if the accessory may be removed without materially altering the quality and performance of the car, you may remove it. Else, you will need to return the car with the accessory. Please note that any accessories that can render the manufacture warranty null and void (either partially or fully) are absolutely prohibited.