If you want to make your manifold shine check Calyx Manifold Coating out.

http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT


I just bought some for my manifold and it made them look perfect. No sand blasting required.

 

Not required but reccomended. Id much rather blast one then spend the time and effort in harassing one with a wire brush. Had to do most of my rearend like that until I could get a new brush wheel for the grinder.