Not all sparks hit the same. E3’s DiamondFire technology isn’t just for show. Its diamond-shaped ground strap lets the spark move freely, igniting fuel faster and creating a stronger flame front. The result? More power, quicker starts, and a cleaner, longer-lasting engine. That’s the E3 difference. | E3 Spark Plugs
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High RPM exposes weak spark fast. If the ignition drops off, the power disappears with it. The E3.48 is built to keep combustion stable when Civics live near redline. Cleaner pull. Sharper response. Real improvement you can feel. Find the E3.48 at www.E3SparkPlugs.com | E3 Spark Plugs
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High RPM exposes weak spark fast. If the ignition drops off, the power …
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With DiamondFIRE Technology, there’s power behind every plug. | E3 Spark Plugs
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Spark Plug E3 E3.31 copper
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E3 Spark Plugs E3.10 Premium Lawn and Garden Spark Plug with DiamondFIRE Technology, 14mm, 0.375-inch Reach, Gasket Seat, Pack of 1
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It’s not magic. It’s engineering, and it makes more power. Every DiamondFire plug starts with geometry that matters. That diamond-shaped tip isn’t for looks, it reshapes the spark, broadens the flame, and delivers real performance gains. Precision built and proven on the track. | E3 Spark Plugs
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