Cometic HTS exhaust header collector gasket set, .060" thick, 2.5" diameter port with a 3.5" bolt circle. HTS construction uses a graphite/fiber blend mechanically bonded to a perforated stainless steel core to seal between manifolds or headers. The facing material is roughly 75% graphite with Kevlar reinforcements for strength and durability, and the gaskets are designed to work without messy sealants to prevent exhaust leaks between flanges.
Cometic .060in HTS 2.5in Diameter Port 3.5in Bolt Circle Set Exhaust Header Collector Gasket