get the oe plug. i've not seen fancy ngks, but i know the fancy bosch platinums that are not oe are a nuisance. had a coupla 850s and 960s, etc., that had none oe plugs in them and they didn't last 5k. fixed many a tuneup the owner put on a car from autozone or where ever, by installing those plats in the trash. maybe ngks are different. i have no problem putting PLAIN ngk coppers in cars, when i can't get the right bosch coppers. i had no problem putting ngk iridiums in my 86 corolla gts-they were the oe plug at 8-10 bucks a piece, i think. too much grief and heartache with the wrong stuff, in my experience. good luck, chuck.