C coach2fast New Member 5+ Year Member Jun 25, 2006 #1 Jun 25, 2006 #1 Do Spark Plug Wires Help? Or best to stock with stock? I hear people say they help with HP and Gas is this ture or just a waste of money? I hear the HGK are the best? WHat do you guys feel on this as a upgrade on a new civic? Thanks for all the help.