Porous/breathable construction reduces oven effect Aazon.co: Oroso SPARK PLUG BOOT SLEEVES, HIGH TEPERATURE, RED High Performance Parts for Classic Cars, Hot Rods, Drag Racing, Open Wheel Racers, Circle Track, Engine Builders and More. Non-conductive and non-flammable; will not react with petroleum-based products Spark Plug Boot Covers 8-Piece Spark Plug Wire Heat Shields - 2500°F Thermal Protection For LS1/LS2 Engines & More (Red) Heat Shield Wrap Protects up to 1,200°F The company has an impressive list of customers, ranging from grass-roots racers to top level NASCAR and NHRA/IHRA race teams., Dual-wall construction Moroso 9875M Mag-Tune HEI Plug Wires BBC Over V/C Straight Boot Spiral... Dual-wall construction protects spark plug boot and ignition wire from heat damage due to close proximity with headers Protects up to 1,200°F Porous/breathable construction reduces oven effect Non-conductive and non-flammable; will not react with petroleum-based products 3/4 ID, 7-1/2 long, compatible with straight, 135° and 90° boots Available in Red, Blue, Black and Natural in two...