iam sure it controls air folw its like a piggyback computer for your car its go for power but i think when u remove it u have to start again and retuine the factory one well that makes sence to me .Rian
its orsm i have played only 4weeks ago again orsm we all loved it i didnt get hurt some of my mates got welts on the neck,hand,chest and through the mask cut their face but phuck it its ORSM