the link to the product in the other thread doesn't work this is the link http://www.speedwaymotors.com/p/2160...t-Coating.html
if you all want it I am going to coat the pems and DP with it and I will tell you all my impressions

That'* where I got mine from. Your impressions will be great, and I expect they'll line up with those of us who have already used the product. Probably half a dozen since I first found it and used it 2 years ago.

I am thinking about buying some also. Is the 4oz can sufficient for the stock S1 L67 manifolds? Or should I buy the larger can?

Depends on how you apply it. Per the instructions, the little can is enough for V8 headers. More than enough for ours. I used only about 1/2 to 2/3rds off the last can spraying it.

First time I applied it 2 years ago with a foam brush (dabbing on a very uniform coat, but couldn't hit the nooks and crannies), I used about 3/4 of a can.