The engine details of this GMC Yukon XL is about 5.3 liter ecotech3 OHV with the VVT, the fuel economy are gasoline twelve MPG for the city drive, fourteen MPG combined, 434 mile range and seventeen MPG on the highway. It gives more point of fuel injection, and it has a secondary power that is 355 hp. A GF performance chip has utilized a latest in the automotive engine control tech. The product allows taking the GMC Yukon performance into a next level. The product has tested for work with the car in either the stock or the modified trim. So you may have any kind of the modification, and also the unit can remain the compatible with the GMC Yukon XL car. The installation will be performed by using a simple hand material. A GForce installs to the GMC Yukon engine bay and also this is connected through the two wires which plug to IAT sensor.