I'm not sure if this is the correct forum to post this question or not....I was considering purchasing the HD Spark Plug & Head Bolt chrome cover assembly for my 2003 Sporty....Its a one piece unit so I was wondering how it would effect my spark plugs. I believe the porcelin insulators also provide heat dissipation for spark plugs therefore what effect would there be on the plugs with a cover over them? The chrome accent piece looks great but I'm not going to risk burning out plugs for the sake of vanity.