[QUOTE=BetterBob]hey, while i was changin my plugs i noticed that my plug wires looked old(the outside clear plastic coating was coming off and such) just wandering how long you guys keep your wires for at a time... and how important it is to change them? arent they just wires? houses use the same ones for loke 100 years...

First off, they aren't really wires in terms of what you think of as a wire. They are plastic coated fiberglass "wires" with super high resistances. They need to be changed about every 40,000 miles.