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Review on DiamondFIRE Technology: Unleash Your Car's True Power with E3 Spark Plug E3.52 Premium Automotive Spark Plug (1 Pack) by Carl Watkins

Revainrating 5 out of 5

Comparable to Bosch P4

I used to swear by Bosch P4 Platinum spark plugs until I used them. Not to say the p4 isn't the best fork, but I've found that they don't make forks for a number of cars. I have used E3 plugs on my 4x4 and Nissan Maxima commuter with great results. Both showed improvements in gas mileage, power at lower revs and smoother idling. Of course, this is akin to a dirty fork, so do your homework if you're into productivity, but if you have a good fork that doesn't need to be closed, I'd give it a shot.

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Cons
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