The BMW 3 Series sets the benchmark for sports sedans, combining precision handling, everyday practicality, and exhilarating performance. Explore Dinan performance upgrades engineered to increase horsepower, torque, throttle response, handling, and overall driving enjoyment. From ECU tuning and intake systems to exhaust upgrades, suspension components, and supporting hardware, discover premium solutions designed to elevate performance while maintaining BMW’s legendary balance of refinement and d

The Dinan Power Control Unit (PCU) is an inline tuning device designed to increase the horsepower and torque of the vehicle! The plug-and-play control unit piggybacks off the primary Engine Control Unit (ECU) to increase output. Using your smart phone and PCU app you can change performance levels on the fly, revert to stock, set boost by gear, as well as monitor vehicle health via logging, customizable gauges, and code reading/clearing.