E3 plugs
Race Director
Joined: Jan 2002
Posts: 15,342
Likes: 2,717
From: Close to DC
C2 of the Year Finalist - Modified 2020
I would do some objective searching the web before spending that kind of money that may result in little to no noticable difference in performance. Spend time and a lot less money on fine tuning your timing setting if you havn't done so already. 
Dennis
Dennis
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
Over the years, companies have tried to come up with unique designs to outdo the competition. Some of these designs were indeed unique. Such as:
The Quick Detach Plug – By turning a lever on the plug, it could be quickly removed for cleaning or replacement with no tools needed.
The Double Ended Plug – Had plugs on both ends which could be turned over and used when the other end was fouled.
The Priming Plug – Allowed a small amount of gas to be injected into a cylinder for easy starting
The Breathing Plug – Allowed cool air to be sucked over the hot end of the porcelain, helping to keep deposits from forming
The Coil Plug – The coil and the plug were a one piece unit
Intensified Plugs – Had a dual firing gap that promised a plug would “fire hotter and longer.”
From:
https://hubpages.com/technology/Evol...the-Spark-Plug
After 160+ years, by far the vast majority remain a single ground spark plug.
The Quick Detach Plug – By turning a lever on the plug, it could be quickly removed for cleaning or replacement with no tools needed.
The Double Ended Plug – Had plugs on both ends which could be turned over and used when the other end was fouled.
The Priming Plug – Allowed a small amount of gas to be injected into a cylinder for easy starting
The Breathing Plug – Allowed cool air to be sucked over the hot end of the porcelain, helping to keep deposits from forming
The Coil Plug – The coil and the plug were a one piece unit
Intensified Plugs – Had a dual firing gap that promised a plug would “fire hotter and longer.”
From:
https://hubpages.com/technology/Evol...the-Spark-Plug
After 160+ years, by far the vast majority remain a single ground spark plug.
