I just bought a header + downpipe + test pipe and I'm in the process of installing it. The open end of the test pipe (the end not connected to the downpipe) didn't come with a gasket. I can't use the oem gasket. Does anyone know what gasket I need?

*edit* okay I'm at partsamerica.com right now and I found some universal gaskets. Does anybody know what diameter a stock H23 exhaust is?


Modified by dtec at 5:07 PM 8/24/2007