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I hear the new Ion Sensing System (ISS) uses Dilithium Crystals and works in conjunction with the Flux capacitor. While changing the plugs alone should not create any ill side effects, I would be careful not to disturb the Ionization Portal Initiator while tugging on the plug wires.
Well, I hate to bust bubbles on stock plugs, but you are paying too much. If you look at Champion stk#810 and lay it side by side to a oem HD plug you will notice they are identical. Champion makes them for HD. They are the same heat range.
I am an hour from a dealer and 5 minutes from NAPA. Have run nothing but Champions in my evo. Did try the expensive plugs and found no difference in performance or mpg. Went back to Champions.
I'd hate to worry about a $13 set of plugs on over a $20K investment.
There's the best statement in this thread. People will pay $8 a quart for oil, but only $.88 for spark plugs??
Someone else said it also, I've been told if there's no major upgrades to the engine, the stock plugs are fine. One less warranty issue to worry about.
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