OEM head gasket vs cosmic 1.5mm gasket

[jr_ss]

Originally Posted by R33E8

I'm not saying they don't make quality products. I just don't trust comparisons from companies trying to promote their own products..

How can you not trust pressure paper results? There is really no way to "rig" that test. Not to mention the thousands of satisfied customers that purchase their headgaskets every year. If I had one complaint about their head gaskets, it would be that they don't have a fire ring built into it. Other than that they are grea and I had no issue with mine sealing at all.