Drilling the airbox is hardly going to increase power, it'll just increase noise.
Brake pads won't give you more power.
Higher rated fuel won't give you more power unless you alter the timing, increase the compression ration or the car has a knock sensor.
Bending the actuator arm is just plain dodgy.
It's highly unlikely £50 is going to get you more power. Better off spending £50 on tools to help you strip the car of weight. This will increase the power to weight ratio. |