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Old 05-28-2009, 12:26 PM
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bigjeff64 bigjeff64 is offline
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I use them on my 4.7 and I noticed a slight differance I also use royal purple lubs in all areas. I found that it keeps everything cooler and in turn will make everything run better its just expensive to switch everything over at one time. Biggest differance was the transmission. I noticed better and smoother shifting all the way through. The E3's Work much better than my previous plugs Bosch Platinums. After I resolve my rear end issues I was think about droppin a MSD in and seeing how that would help but I was told it may disrupt my sound system.
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