NGK IRIDIUM IX PLUGS ARE ON SALE NOW AT ADVANCE AUTO PARTS. THEY USUALLY RUN $16.99 EACH AND I JUST BOUGHT FOUR AT $6.99 A PEICE. THESE ARE FOR MY 02 CIVIC LX, I HAVEN'T CHECKED OTHER VEHICLE APPS.

DENSO IRIDIUMS ARE AT AUTO ZONE FOR $12.99 A PEICE BUT THE GUYS SAID THAT THEY ARE BASICALLY THE SAME PLUG SO I WENT WITH NGK. FYI