I just got a set of those,how well do they work compared to the Mopar ones that are like them,i went to buy the mopar ones and they're$60 now,i was paying $22 for them last season...
I don't know about the mopar one's but the moroso one's are the best valve cover gaskets i've ever bought,put them on with no sealer and not a drop of leakage. Had the covers off three times and they still seal like new. As you say high $$$$ but it's pay up or keep smelling the burnt oil
I installed the blue Moroso's last month and had to put alittle ultra blue on the valve cover side because it was leaking a bit. I guess my valve cover is a little warped or bent.