Koolwire Spark Plug Wires

The Miata spark plug wires tend to go quickly, due to the high under-hood temperatures and the fact that the spark plugs fire twice for each combustion cycle. Also, it is easy to get engine oil on the wires while adding oil.

Apparently, you should be able to see sparking of poor wires when opening the hood while it is dark, possibly after spraying a mist of water over the engine. I did not try.

The effect of poor wires is hesitation at low rmp, and at high rpm when you kick it. Although my blue NKGs were relatively new, I had that difficulty, so I replaced them by the (only) wires I found at Pep Boys.

Installation

Do not take off more than one wire at a time, or you will have trouble figuring out which wire goes where. Take off wires from the longest to the shortest and replace by the new wires as you go along.

Evaluation

The hesitation is gone.

Price

BWD Koolwires CH7448, 7mm 09-R, $34.99, Pep Boys.
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