1095460 004 4 SPARK PLUG (PFR7G-11S) (NGK) No Color 17.60 12.32 Qty:
1525437 004 4 SPARK PLUG (PK22PR-L11S) (DENSO) No Color 17.60 12.32 Qty

i think the ngk one is what my car came with. i have the iridium version, but i keep hearing people say just use the stock one. anyone have any input to this? the iridium smoothed out the hunting idle with the stock ecu, but that was about it. if there costing me power then there gettin tossed. i have aem ems now so if the idle hunts abit i can fix that now in the software.

lemme know.

 

I'm pretty sure they won't cost power, as long as they're the correct heat range. I'd just keep the iridiums in there.