FAA-PMA approved Slick Harnesses by Champion are built to handle the maximum spark energy produced, while delivering more energy than is required by the spark plugs - even during emergency full-power engine operation. Using anything less could result in more than a 50% reduction of radio sensitivity in commonly used communication frequencies, as tested by Champion. Features such as a heavy-gauge contact spring provide more contact area and force inside the spark plug, while the flexibility of the coiled center conductor reduces fatigue and breakage resulting from repeated temperature cycling and vibration.
Click link below and find correct harness number for your application.
Champion Slick Harness with 5/8 Plugs Application Guide (PDF)
Champion Slick Harness with 3/4 Plugs Application Guide (PDF)
Full Slick By Champion Application Guide (PDF)
There is no functional difference in the wire colors. Only color preference.