Installing Performance Chips to your Cruiser is a common sense. The ECU module on the GMC SIERRA C3 Performance Chips help provide appropriate mixture of the fuel and gas ratio providing best performance by your C3’s Engine during the process you get the best return for your money you spend not just on the Chips but also on the fuel. Often confused with technical details owners of the vehicles avoid installing these performance chips. Keeping this in account we have design our easy to install chips can be installed even with common hand tools. This way you will not have to spend hundreds of dollars on installation. Once installed in your vehicle; you will have power oozing from your engine as you slam the gas. It is not uncommon for your vehicle to gain 25 – 50 horsepower, increased throttle response, and increased efficiency on your GMC SIERRA C3 2001-2005 once our Performance Chips are installed. So it is a cost effective way to harness the ECU Engine technology at its best and at low price too. Our website is exclusive provider of these chips and our stock is full so you will not have to wait. We provide top notch customer service and available 24X7 if you have any questions.