Hey, I've read a post on here about upgrading the ignition system on the sr20de by using a crane lx-91 coil with new leads ( thinking of TopGun leads ). Im currently running NGK BKR6E spark plugs gapped to 1.1mm which isn't bad but because I'm upgrading the ignition with more spark power I am thinking of gapping to 1.2mm which you cannot do on non 11 plugs so here are my choices. BKR5E-11, BKR6E-11 and BKR7E-11. I would like your thoughts on which plug will be best with a 1.2mm gap to avoid pinging. I know its a bit more of a test and trial sort of thing but maybe someone has done it. Cheers.