Karlyn 815 Spark Plug Wire Set with 8mm Silicone-over-Silicone Ignition Wires

The Karlyn/STI 815 Spark Plug Wire Set is a premium OE-quality ignition wire set engineered for reliable performance and long service life. Karlyn/STI is a leading U.S. assembler of spark plug wire sets and an original equipment supplier to Audi/VW and BMW of North America, with decades of expertise in German-engineered ignition components.

At the core of every Karlyn/STI wire set is a double-extruded 8.0mm Silicone-over-Silicone cable featuring two full layers of high-grade silicone insulation. Unlike competing sets that use silicone only for the outer jacket, the dual-layer construction provides superior voltage leak protection and resists temperatures up to 600°F. The conductor consists of 19 strands of tinned copper core for excellent conductivity and corrosion resistance.

Key Features:

• 8.0mm double-extruded Silicone-over-Silicone insulation for maximum voltage protection
• 19-strand tinned copper core for superior conductivity and corrosion resistance
• German-engineered spark plug connectors with permanently mounted silicone tips — no glue that can fail
• True 90-degree distributor boots with matching 90-degree terminals for a positive, secure connection
• Oversized clip-lock terminals ensure a firm electrical connection on installation and reinstallation
• Stainless steel magnetic conductive windings suppress ignition noise and RFI interference
• OE-equivalent fit with OEM-style connectors, looms, and harness clips included where required
• Backed by Karlyn's limited warranty against factory defects

Karlyn/STI wire sets are built in the USA using OE-grade components sourced through their long-standing partnership with Bremi Fahrzeug-Elektrik of Germany, the same supplier used on European OE applications. The 815 is a direct-fit replacement set designed to restore ignition system performance to factory specifications.