Mercury Grand Marquis Performance Chips, Power Programmers & Tuners

About Performance Chips

Mercury Grand Marquis - At NAPA Online, we have a chip for your car. A performance chip or power programmer can really help to boost your vehicle's performance. With one of these devices, you'll be able to get real-time updates about what's happening under the hood, as well as tweak the factory settings of your engine components to suit your unique driving style. Don't waste time with anything but high quality performance chips from reputable companies; trust us, we know what we're talking about.