Cooperring gasket Mercedes M104/M103

Cooperring gasket Mercedes M104, thickness 2mm, inside diameter of ring 91.40mm for use in all M104 2,8-3,2 lit. Also fits M103. Please note that is is not listed for M103 by Athena but we have customers running it with great success.
We have developed this gasket with Athena and hard tested in dyno.