We never use or fit add-on tuning boxes. They usually work by interfering with engine management signals to trick the injectors into adding more fuel. Our services involve a custom remap of your ECU, specifically for your vehicle.
A tuning box relies on the principal of more fuel equals more power. The theory is correct. However, in practice they are unable to control a correct air to fuel ratio, resulting in too much fuel and excessive black smoke. The black smoke is un-burnt fuel exiting through the exhaust system and has no affect on power gain. A tuning box raises emissions and increases the thermal load on the engine. A tuning box sends false signals to the ECU, preventing the ECU from working correctly to protect the engine and to maintain safety.