Updating your speedometer calibration doesn't require a trip to the local shop with the help of the Rough Country Programmer Installation Harnesses! These harnesses feature a design that provides plug-and-play performance on your vehicle with compatible cable headers and plugs. With these in play, you can easily update OE ECM shift points and electronic stability control to accommodate larger tires, as well as revert them to stock settings should you choose to. Do-it-yourself calibration has never been simpler with the functional Rough Country Programmer Installation Harnesses.

Rough Country was established in the 1970s to provide off-road enthusiasts with their suspension upgrade needs. Fast forward to now, the company has become a staple in the aftermarket for some of the best off-road equipment, offering anything from leveling kits, tires, and shocks to bumpers, fender flares, and off-road lighting solutions. Rough Country listens to the end-user to innovate its products with the help of a top-notch engineering team and high-end facilities. And this results in some of the most reliable, easy to maintain, and affordable selections in the offroad aftermarket. Transform your ride into your dream machine with the help of Rough Country's amazing product lineup.

Rough Country is a renowned designer and manufacturer of top-of-the-line aftermarket accessories designed for a wide variety of trucks and SUVs. Based in Iowa, USA, Rough Country offers superior products that are compliant with FMVSS, including, but not limited to suspension systems and related accessories, suspension lift kits, leveling lift kits, body lift kits, lighting and accessories, shocks and struts, wheels and tires, winches and accessories, drivetrain, performance parts, steering, suspension components, Jeep accessories, lowering kits, apparel, bumpers, bull bars, grilles, brakes and accessories, fender flares, wheel well liners, floor mats, bed mats, bed covers, and light controllers.

Rough Country designs and develops its products for Chevy/GM, Ford, Dodge, Nissan, Toyota, and Jeep. Noted for its durability and performance, most Rough Country products are backed by a manufacturer's lifetime replacement warranty.