is it worth buying this, i saw it on ebay for $21?
hw much hp would this add?

 

I would say 0

 

nothing...You have a better chance of getting more HP from puttuing cool stickers on your car.

 

hahahahhahahahhaahah thats funny ill do that

 

Read FAQ and Modication FAQ...I know it's in there, plus other valuable info.

 

Urban legend has it that if you install the "ebay chip" (as it has been deamed), and you flash your headlight bulbs at an oncoming car that has it's lights off, then you will get a sudden burst of speed in a nitrous like fashion. IT'S TRUE