Ultimate Race Spark Plug Boot Shield 1" ID bends 90⁰ - 6Pk This reduces the heat into

This reduces the heat into your vehicles interior and surrounding components

Aim to cover 70-80% of flat

Prevents starter failure due to excessive heat

-6mm (1/4")-thick BioCool thermal-barrier inner pad sandwiched between heavy-duty foil

Ultimate Race Spark Plug Boot Shield 1" ID bends 90⁰ - 6Pk This reduces the heat intoSpark Plug Boot Shield Ultimate Race 6 Pack Universal 1" ID. Protect and increase the life of your expensive plug wire sets with our HPP Ultimate Race Spark Plug Boot Shields. Preventing misfires caused by burnouts, loss in performance and critical engine damage. Double wall construction provides superior protection, while special coatings reflect and dissipate heat to boots. It's universal design fits most boots, even 90. Able to withstand 1800F