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Purchased a new set of these after owning my Hummer H3 for 11 months. Since I wasn't certain when the plugs were last changed, these went in at 100,000mi. The plugs I pulled out were the same as these, with a bit of light brown or tan colored deposits (which is normal), but other than that they seemed to still be good. I put the new Iridium ACDelco Pro 41-103's in, and my Hummer runs smooth as butter. I couldn't be happier. Stick with OEM and leave overpriced "premium" gimmick plugs on the shelf where they belong.
Verified purchase: Yes | Condition: New
Stay with the factory recommended plugs, get them cheaper than at the Auto parts store. Don't leave home, Order on line, wait a couple of days, Easy to install. Smooth idle and performance.
Verified purchase: Yes | Condition: New
30 %of what cost at ur local auto parts store
Verified purchase: Yes | Condition: New
Works perfectly on HUMMER H3. The only spark plugs I use on this vehicle.
Verified purchase: Yes | Condition: New
Great quality stuff with be buying more for the rest of my trucks and car even my play toys thanks for offering great stuff at a super deal
Verified purchase: Yes | Condition: New
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