|Thermoshield glassfibre sleeve treated with proprietary coating
Provides spark plug boots and leads protection from extreme under bonnet heat - prevents heat-hardening and cracking of leads and thus helps prevent misfires.
Double wall construction with stainless reinforcing ring.
Installs in seconds, universal figment for straight and angled boots.
Can rest directly on manifolds/headers without becoming brittle, withstands continuous temperatures of 1300 degrees F (700C)