You will resolve be able to outhaul the opposition when you fix one of these great XL pickup chips. Every Yukon pickup performance chip we sell is guaranteed to provide you with more power and better fuel economy. If you want a quick upgrade that will make a noticeable difference, then you will want to get a XL pickup ECU chip. Besides hauling, you will also be able to tow heavier objects with your improved Yukon XL pickup chip. These Yukon pickup performance chips will also help to smooth out those shifts from your automatic transmission. Installation of these Yukon pickup power chips is a light wind and you will marvel why you didn’t do it earlier. The power box for diesel performance is connected between the control unit and the diesel pump in order for it to optimize fuel supply. All diesel kits products are brought with their original connectors, making installation very simple and quick.