With the GMC S15 ECU computer, certain things are now happening. The entire performance of the GMC S15 truck has heightened to levels not thought of before. Whereas it was difficult to steer the vehicle to tackle a corner because of the weight of the car, the power chip as made it possible to make the reconnoitering easier while maintaining the weight to improve the trucks centre of gravity. GMC S15 performance chip has also upgraded the torque which is sacred to the GMC S15. The overall performance module has moreover given a new impetus on the gas mileage as now the truck can travel over a long distance without having to always look for a gas station as it can use up the saved fuel to travel before conveniently getting gas. The GMC S15 chip will not let you down. S15 gains an increase in 10 horsepower.