CNC machined 304SS exhaust head flange for 07k 5 cylinder engines. These are 1/2" thick with counter bore's for 1-1/4" schedule 10 or 40 pipe to make locating your runners during fabrication a snap. If you are seeking out the nicest fabrication parts for your build you have found them.ealed the pins can elongate their holes and the couplers can leak or fail.
