SUMAX Custom-Fit Spark Plug Wire Kit — Red, 21.5 in – 80-98 Touring, 87-94 FXR, 86-03 Sportster

🔧 Engineered for performance and durability, these custom-fit spark plug wires deliver reliable ignition in demanding conditions.

• Precut with plug and coil boots plus terminals already installed for quick, hassle-free installation.
• Boots and insulation are made from extra-high-temperature silicone, offering protection up to 600°F for extended service life.
• Spiro-Pro core boosts conductivity up to ten times that of a standard carbon-core wire, reducing resistance and heat.
• Low-resistance design helps the wires run cooler and lasts three to four times longer than carbon-core equivalents.
• Optimized for electronic ignition systems while remaining compatible with point-type setups.
• Manufactured in the USA to exacting standards.

Whether you need dependable daily performance or durable race-ready components, these wires provide consistent spark delivery and long-term reliability.