Upgrade your Harley FLT with these high-performance Taylor Cable spark plug wires, perfect for vintage enthusiasts and performance seekers alike. The S40033 "409" Spiro Pro Race 8mm wires are designed to provide exceptional spark delivery, resulting in improved throttle response and increased horsepower. Crafted by the trusted brand Taylor Cable, these wires are ideal for custom and racing applications, and the sleek black design adds a touch of style to your bike. With easy installation and reliable performance, these wires are a must-have for any serious Harley rider.