JBA headers

[gusto]

I purchased JBA shorty headers from unlimited performance in Calgary, Alberta, Canada. When i was paying for them they told me I had to run ACCEL silver tip spark plugs because they are a cold plug and to have a one year warranty. They said other plugs like NGK burn hotter and burn the headers? has anyone heard of this or is it ********. i was going to put a new set of champions in it but they are insisting accels. My header are in now just waiting on the plugs now.