Installing the 2006 Duramax zf6 is something you should consider if you are looking to get more power of out your engine without having to purchase a more powerful vehicle outright. There are so many benefits that you can experience when you tune the engine of your vehicle. Whether the engine control unit (ECU) is changed, the engine is remapped, or a performance chip is added, the change in the software can make a huge difference in the performance of your vehicle.