Hello Kluger owners just want to ask if someone changed their kluger spark plugs to Denso iridium TT -- IKH20tt these are the new iridium plugs available better than the ones we already have in klugers. Can someone post any comments about this change.http://www.ebay.com.au/itm/131689111676?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT