8.5mm Super Conductor Universal Spark Plug Wire Set. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference.
Dave's Tech Tip; I have found the MSD wires to be the best for Spec Miata racing. Their terminal and boot design allows positive connections and proven performance. See page 52-53 in The Spec Miata Constructors Manual.
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