Heatshield Products® Lava Exhaust Wrap 50mm(2") Wide x 15mt(50ft) Roll 650⁰C Continuous Made in Usa but 1/2 inch minimum is

but 1/2 inch minimum is recommended

You can actually wrap the header with this wrap

Easy installation: Place ring side on end of the spark plug boot and slide the open end towards the wire

Fawn Coloured Exhaust Wrap 25mm (1") Wide x 3mt(10ft) long Roll

Heatshield Products® Lava Exhaust Wrap 50mm(2") Wide x 15mt(50ft) Roll 650⁰C Continuous Made in Usa but 1/2 inch minimum isHeatshield Products Lava Exhaust Wrap 50mm(2") Wide x 15mt(50ft) Roll. Lava Exhaust Wrap is the first heat shield exhaust wrap made from crushed volcanic rock fiber. When used on a header or exhaust component, this car heat wrap increases exhaust scavenging which can give a horsepower boost to your vehicle. Features: Reduces exhaust related heat up to 50%. Lowers under hood temperatures. 25% stronger than fiberglass wraps. Improves exhaust gas flow.