Choosing the Mercury Grand Marquis performance chips for your darling Grand Marquis is the best thing to do. Imagine giving your car engine more energy and injecting extra horsepower at a very cheap price, it will be a wise idea to have installed by following the instruction guide presented when you buy the gadgets for your car. The torque acquired make the Grand Marquis accelerate much faster hence saving on mileage. The Grand Marquis is a plug and play which means you only fix it in the existing ECU to create the difference. Grand Marquis chips responds perfectly well with other parts in your car engine hence causing no problems to your system software. Getting great performances on the highway will not be a handicap for you anymore when you reinvigorate the Grand Marquis ECU performance chips in the car computer system. Start to feel the effectiveness of the chips now by becoming a member.