I recently put the NGK Iridium plugs on mu '08 Superglide (96" TC EFI) because I heard they were superior plugs. I have since read in a couple of places that they may interfere with "ion sensing" or something like that. At first I thought somebody was yanking my chain like sending me off for positive bearing grease or sound-powered phone batteries.

But reading it twice makes me ask the question: is there something to this?

Steve