Collection: Auto - Performance Tuner/Programmer

Take full control of your vehicle’s engine computer and unlock hidden power with our selection of Auto Performance Tuner/Programmer components. At DIY Customs, we provide high-performance handheld flash tuners, specialized touchscreen monitors with on-the-fly adjustment, durable speedometer calibrators, and heavy-duty diagnostic programmers designed for a perfect fit in gas and diesel trucks, cars, and SUVs. Whether you are seeking substantial horsepower and torque gains for towing, correcting your odometer for larger tires and gear swaps, or outfitting a racing build with custom data-logging and specialized fuel maps, our professional-grade electronics from top brands like Superchips, Hypertech, Edge, and DiabloSport offer the precision and safety you need at unbeatable prices. From specialized shift-point adjusters to direct-fit OBD-II modules for popular domestic and import platforms, we carry the essential gear for every electronic tuning project. Don't see the specific tuner model, vehicle-specific tune file, or specialized monitor for your dash? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!