In the not so distance past, in order to get any kind of significant power gains out of your engine, you needed to get a case of beer, a few friends, and some expensive parts. Then you needed to spend an afternoon or two under the hood of your car. Today, it is possible to see a big upgrade in power without even getting your hands dirty. The computer controlled systems of today’s cars can be tweaked and altered simply by making adjustments to the hardware by using a Granatelli Engine Programmer. Ever since vehicles went to the OBD2 system, they all have rewritable software than controls everything from the air fuel mixture to the ignition timing to the shift points. To change any of these setting and dozens of others, simply plug the Granatelli Engine Programmer into your vehicle’s diagnostic port. After reading your VIN, it will run through a series of yes or no questions, which will only take you a few minutes to answer. Based on your responses, the Granatelli Engine Programmer will reprogram your engine and transmission so that you will get the driving characteristics you are looking for. With the Granatelli Engine Programmer, you can see horsepower gains of up to 20 HP, and all without even having to open the hood. Customers always want great customer service while buying high-quality auto parts from us. That's why we built a 24/7 sales assistance call center to support all your requests. To sweeten the deal, there is FREE shipping for each order $50 and higher. If you can find a better price, tell us - we always beat any advertised price for auto parts.