BO OBX Graphite Gasket for Header and Down Pipe 06 07 08 Civic Si K20 100 % High Heat Resistant Graphite Gasket and Fitment is Guranteed It will withstand long term direct exposure to over 400 C OBX Genuine Products Design and Quality of OBX U.S.A. These Gaskets are Compatible with stock exhaust Header This is perfect for race or street use.