I am a satisfied user of the Pulstar plugs. I purchased them in July and since then I have been averaging more MPG out of a tank. I'm driving an auto trans vehicle and I do notice that I am able to accelerate with less throttle without being run over by other vehicles.
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RED FLAG edit from admin: Because cmslick3's first post is in this thread, I'd caution all readers to be suspicious of motives/authenticity and skeptical of what he reports. Personally, I'd dismiss this post.
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In the grand scheme of things I've gained not only MPG but HP as well. I can't PROVE that I have a HP change but I definately feel it. As can my wife who generally dislikes 4 bangers but since the plugs went it she noticed an improvement.
The only problem I had with the Pulstar plugs was the gap specified for my car was incorrect on the documentation that came with the plugs. I ran them for a couple weeks at the documentation gap, then re-gapped them to the MFR gap and thats when I noticed the improvements.
I'm not sure if other people have the issue with the gap being incorrect or if it was a mistake on my part.
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