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these are and always were the best spark plugs made, period. put them in and run 100,000 miles and never check them again. I've tried the 4-tip iridium Bosch as well, but these are better. the iridium eventually cracks the porcelain insulator at the tips. the platinums never break. most auto parts stores don't stock them anymore, you have to order these online, but they are a great value.
Verified purchase: Yes | Condition: New
Great product at a great price. These plugs made a difference as soon as I installed them. Better engine performance was noticed immediately.
Verified purchase: Yes | Condition: New
They keep my pick-up [which I love] purring like a contented cat.......
Verified purchase: Yes | Condition: New
Gas mileage improved,pick up better overall engine a lot smoother
Verified purchase: Yes | Condition: New
I fell the difference already! 100% satisfied. Bought them for a '99 Vehicross.
Verified purchase: Yes | Condition: New
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