Owner reviews for spark plug

Thanks for the all input guys, I kept the Denso IK22's at the stock .032 and they seem to work grrrrrrrrrrrrrrrreat, all my miss firing issues are gone (probably due to faulty old coils) and the old IK22's I had in there were probably looooong in the tooth with around 50k on them. I do notice the smoother idle and the butt dyno feels it seems to be a bit more eager to go from low revs feels so good to not have to 1/2 step on the gas so it doesn't go into high boost and misfire, drove like that for several months:facepalm:

Bosch W7DTC plugs were the best, caint get them no mores, use NGK BP6ET plugs instead.

New NGK Spark Plugs

I'd replace them immediately, you'll notice an improvement right away.

You will have improved power and fuel efficiency if you replace those plugs.

My CC is 2 years old and I have accumulated 65k miles. I changed the plugs at 60k. They looked pretty toastyso I am glad I did.

Plugs 97K on my 2010 original ones...working great (lots of highway miles). I'll be changing them at 100K.

i changed the original NGK spark plug with new Bosch super 4 spark plugs. a nice improvement but still far from old good performance.

Bosch is making crappy plugs these days.

Don't put autolite (autocrap) in your car, they're junk.