Goldenpony

If anybody is interested, Champion is running a $2 per plug on the Double Platinum (Includes the #7989 plug for 05-early 08 4.6L V-8). I ordered a set from Rock Auto for $11.81 ea. Will get $16 rebate back. Yea, a stupid high price, but it's a 1 piece plug (won't break) and it is double platinum so it will last a long time. Rebate is good on plugs purchased between now and 11/30/11.

I have been running a set in my '06 GT for about 50K miles without a single problem.

svtsupremecy

good looking out...+ 1 for these plugs. Single piece and they have worked well for me with about 40,000 miles on them. expensive, but good.

lenko

Bought mine from RockAuto about a year ago, one plug the little cone slipped over the spark area (brand new in box). Rock Auto wouldn't warranty their sale and had to go to Champion Canada who arranged to replace locally. The past few weeks my 06 Mustang GT has been driving me crazy, running rough and misfiring. Finally, finally after trying everything with Maf, throttle body, different tunes and almost checking phasers, timing and worrying about broken comp cams valve spring, I decided to put the original motorcraft spark plugs in and voila, car is as smooth as silk again. Examined the Champions 7989 and found on one that the metal neck just above the threads and the socket head was cracked and broken on both sides. Absolutely no reason for this to be broken as car had ran well for over a year and the plugs had not been touched. My experience with Champions.

jz

^ unfortunately there's eventually a turd in someone's box. No one has 100% flawless quality, and expecting such will only leave you disappointed. My Champs have been in my car for 4 years now without any issues.