Karlyn 930 Spark Plug Wire Set STI Silicone Ignition Cables

The Karlyn STI 930 is a premium replacement spark plug wire set engineered to restore and maintain optimal ignition system performance. Karlyn Industries is a recognized OE supplier to Audi/VW and BMW of North America, and their STI (Spark Transfer International) wire sets are assembled in the USA using German-engineered components.

This set features Karlyn's signature 8.0mm Silicone-over-Silicone construction — two full layers of high-grade silicone insulation rated to withstand temperatures up to 600°F — delivering superior voltage protection and resistance to heat, corrosion, and vibration. A stainless steel magnetic conductive winding core provides strong firepower to the spark plugs while suppressing radio frequency interference (RFI) that can disrupt onboard electronics.

Key Features:

• 8.0mm double-extruded Silicone-over-Silicone cable construction for superior voltage protection
• Stainless steel magnetic conductive windings for maximum spark energy delivery
• German-engineered spark plug connectors with oversized clip-lock terminals for a secure, positive connection
• 90-degree distributor boots with matched 90-degree terminals for proper fit and feel
• RFI/EMI suppression to protect radios, cellular phones, computers, and other onboard electronics
• OEM-style connectors, looms, sensors, and harness clips included where required
• 100% tested for conductivity and proper resistance before packaging
• Proudly assembled in the USA

The Karlyn STI 930 spark plug wire set is backed by Karlyn's limited warranty covering defects in materials and workmanship, making it a reliable, long-lasting upgrade or direct replacement for worn OEM ignition wires.