Replaced original plugs in my Nissan 350z because of a coil failure. These were a recommended upgrade from changing oem every 40k. My car had over 80k so plugs were way overdue. These plugs in conjunction with a set of performance coils really woke up my cars performance and the longevity of these plugs are well worth the cost
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These will give a lil bit more punch then stocks, so so save on gas.
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I out these in my Dodge 2500 with the 6.4 liter Hemi due to the engine idling a but rough. This made the engine run much smoother.
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excelent high perfomance
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GREAT PRICE
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