E3 Spark Plugs
Welcome to E3 online... home to the advanced DiamondFire Technology spark plug. If you are a returning E3 visitor, let us know how you like the changes to our website. If you are a new visitor, welcome to the website that's dedicated to bringing you the latest news about increased performance, reduced engine emissions and a better burn for your powersports, small engine and automotive spark plugs.
Our mission at E3 Spark Plugs has always been reflected in our devotion to the advancements in spark plug technology. Now, the new E3 website is an inclusive portal for all spark plug applications as well as a technical center for information about our fuel-efficient line of performance replacement plugs. By focusing on improving the ignition cycles of air-fuel mixtures inside your engine's combustion chamber, our products are engineered to be environmentally friendly with a more complete and cleaner burn.
Also, new to the E3 website is the E3 Tech Support Center. We've improved your access to the latest technical information about spark plug selection and installation. You can check for the latest tips in our Tech Bulletins or Tech Videos sections. You can use our onsite media player to check out the latest E3 racing videos posted in the E3 Video Center. And, don't forget to stay informed by visiting our News center for the most current blogs, events and press releases.
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I have installed E3 plugs in three vehicles:
1930 Model A (350 SBC stock) resulting in faster starts, better manners during cold
Read Full Testimonial >>I have installed E3 plugs in three vehicles:
1930 Model A (350 SBC stock) resulting in faster starts, better manners during cold running, smoother idle, lower fuel consumption.
1979 Chevy LUV (stock 1.8) resulting in all of the above benefits plus better performance in the lower rpm range.
1962 Ford Falcon Wagon (Modified street 302) resulting in much smoother idle, usable performance at lower rpms than previously achievable, smoother running overall, an ability to idle the engine at a lower rpm than before.
The E3 plugs gave noticeable improvements in each vehicle immediately. I would strongly recommend this product to anyone wanting to get the most from the vehicle they drive. I tell everyone I can about them whenever the opportunity arises. This is a quality product!
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I have a 2003 Mazda Protégé 5 that is far from stock anymore. I am running a set of E3's and am getting
Read Full Testimonial >>I have a 2003 Mazda Protégé 5 that is far from stock anymore. I am running a set of E3's and am getting 28 - 30 mpg depending on my right foot. I was getting 26 - 28 before. I also have a 1992 lifted Dodge Dakota 4X4 with a 318V8. I am also running a set of E3's. Can't complain with that choice either. My other truck is a 1950 Chevy with 355 HP GM Performance ZZ4 under the hood. I plan on dropping another 8 E3's into my rat rod when it's time for new plugs. I'm very happy with the plugs.





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We have a 1997 Isuzu trooper with over 225,000 miles and were going on a trip about 2,000 miles long, and stock mileage is 14 to 17. After using your
Read Full Testimonial >>We have a 1997 Isuzu trooper with over 225,000 miles and were going on a trip about 2,000 miles long, and stock mileage is 14 to 17. After using your E3 plugs our mileage went up to 18 to 23 mpg depending on the driving hills or flat road. We love your plugs and are worth every penny, they paid for themselves just on this trip and more power too!
Thanks
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I just want to take a little time to thank you and your team for the excellent product. I run these plugs in my
Read Full Testimonial >>I just want to take a little time to thank you and your team for the excellent product. I run these plugs in my truck and the quality is untouchable. Today I put one in my son's quad and I am extremely impressed. It started right up and I can hear and feel the incredible difference. KUDOS to your excellence. Keep up the exceptional work. Thank you very much from my son and I for keeping our toys in great running condition.
Thank you
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