Never let a spark plug cap failure end your race again. Spark plug caps can work there way off from vibration or faulty install. The Spark Plug Boot Strap has an aluminum retaining ring that fits over the spark plug and a rubber strap that holds down the cap.
- Fits Spark Plugs 21mm/13/16"
- Does not work on IAME X30 or similar recessed engine wells
- Available in color options of: Black, Red, Gold