Hey does anyone use this spark plug (NGK 7803/DPR7EIX-9)  and or is there a difference from the stock to iridium plugs... at least noticeably? Im sure there is but I just bought those ones specifically and about to install tomorrow. Not the DPR8EIX-9 or DPR9EIX-9 but the NGK DPR7EIX-9, is there much of a difference in spark plug.  Im in Vancouver

http://wiki.gstwins.com/index.php?n=Upgrades.SparkPlugs

The 7 is listed as, "If the standard plug is apt to get wet, replace with this plug"

I've been using Iridium plugs (DPR9EIX-9) for the past few years and I honestly can't say I notice a difference.