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Posted by Daryl in Oz [58.178.148.147] on Friday, January 08, 2010 at 03:41:05 :
In Reply to: Re: 7mm vs. 8mm or 8.5 mm spark plug wires posted by 74w300uteline [68.197.255.54] on Thursday, January 07, 2010 at 22:48:40 :
Thicker insulation for race engines. High compression high performance engines using high resistance spark plugs benefit from thicker insulation on the plug wires to reduce/eliminate spark leakage.
More options = more buyers = more $$$
I make and use the old style solid wire leads on all my off-road vehicles - never have to replace, no leakage, no carbon impregnation to break down, etc and you KNOW they will carry electricity. Oh yes and they are RED.