I've never heard of using this stuff on exhaust manifolds. Have I been missing something all these years? Sure sounds a lot easier than using coatings specifically designed for cast iron manifolds.. therefore, it MUST be too good to be true
![Wink](http://67-72chevytrucks.com/vboard/images/smilies/wink.gif)
ha, just kidding. Would love to see some pics of some if there are any - curious what it looks like when just recently coated and what it looks like after a year.