
Let's be honest. I was quite skeptical that they would even work. I mean who has ever seen a spark plug that looks like this?!? When I went to the manufacturer's website I decided to give it a try. I'm so glad I did! I used them on my 2006 Harley-Davidson Sportster 883 Low and noticed the difference right away. The bike only had 11,000 miles but I tuned it up and changed everything I could because it's new to me. I want it to work as well as possible. It's hard to say exactly (because there are no exact fuel gauges for bikes), but I'm pretty sure pushing a few more mpg over the stock plugs helped me. It also works and sounds better. Yes, these bushings are different. But in this case it's very good! Visit the website to ensure you have purchased the correct plugs and learn more about them. I don't think I will order anything else now.

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