All cars manufactured need to fulfill an emission law that the vehicle (& engine) keeps its tailpipe emission below a given threshold. The engine designer or manufacturer also wants to keep a safety factor to prevent engine damage. Karreman Engineering is able to rewrite the calibration of the engine control unit to give the best performance your engine can handle. When optimizing the calibration (called tuning or mapping) of your car’s engine several factors are placed in mind to protect the engine from early failure that might be caused by the new calibration. Karreman Engineering observes for maximum turbo temperatures, pressure ratios, gearbox torque and more components to safely rise your engines power output. When values are exceeding the limits the owner is informed of the danger it can cause when he/she agrees to exceed these limits.