The Dynojet Power Vision 4 (PV4) is Dynojet’s most advanced ECU tuning and diagnostic device, designed for fast, precise tuning with a modern, high-resolution touchscreen. Offering enhanced processing power, expanded data logging, and support for preloaded and custom tune files, the PV4 delivers improved throttle response, horsepower, torque, and overall rideability while accommodating common intake and exhaust upgrades. Compact and durable, it allows riders and shops to flash tunes, monitor live engine data, and perform diagnostics directly from the bike—no laptop required.