I am bringing a set of rams horn manifolds to be ceramic coated tomorrow morning. I was contemplating smoothing out the parting lines, so they have a cleaner look. I had originally thought about it because one has a strange line that looked like a crack but had to have been a flaw in the casting. I wanted to take off some material to make it look better, but I didn’t want to take off too much. Should I leave the lines for originality, or just do what I want to improve the appearance? Should the mounting surfaces be coated also? I have tried them up already.

Thanks,
Soffian

Soffian Adam
Jamestown, NY
59 F100, 55 Club sedan