ACCEL Motorcycle S/S wires fit securely and provide maximum spark energy up to from the coil to the plugs! The wire sets feature extra thick 8mm silicone jacket and silicon insulation to eliminate electrical leakage or RFI interference that interrupts electronic ignitions and EFI systems. ACCEL Motorcycle S/S wires provide up to 5 times more peak energy than other "performance" wires.; Delivers up to 5 Times More Peak Energy than other "Performance Wires" Extra thick 8mm silicone jacket with 500 Ohms per foot Stainless Steel Conductor Maximum RFI protection shields sensitive electronics Custom Fit- Ready to install right out of the package, no cutting or splicing required