Jim beat you to it many months ago but funny non the less. Almost as good as the BOV for N/A cars. But then again the BOV for N/A cars are real items to be sold. Calvin
I heard that if you change the air in your tires, you can easily get a few more horse power at the wheels too! And don't forget to change the halogen in the headlights...it keeps the wind resistance down...
Re-inflating your tyres at high altitude will increase top speed also. The thin air being more aerodynamic. I have heard if you lighten and balance the dust caps it will enhance the handling
