i have heard of books out there that tell that if rerouting certain wires and what not can acctually bring more power to the engine. anyone know of books out thre that can help me with this?

 

what kind of car do you drive

 

what wires would you rerout? sounds like BS to me.
free hp:
remove air silencer
advance timing

 

i think what the are referring to is the big ground wire kits, and its not really worth it, and there is no such thing as free hp, you bought the car didn't ya? lol anyways i can't think of anything besides what lucky13 said

 

04 gt

 

removing ac, smog pump, hollowing out the cats, icing the intake....

 

steal a supercharger...

 

That would be free. haha.