[TheBlade]

Hey Sorry lost the PM, it just disappeared on me so I´m posted your response on here.

Okay here´s the trick to getting your paint to stay. First use the highest temp paint you can get. Now wash the part up really well. Dont leave any dirt. Next use an acid of some sort. This will set up your exhaust manifold for painting. Paint the thing with the high temp paint. Get the coats really really thick.
BAKE IT in the oven. I kid you not this is the trick. Bake it at like 400 degrees for like 3 hours.

It should work. Although I will admit even on mine it flakes a little...but that´s because I´ve been running lean and the turbo has been getting too hot.

 

[Streetwize]

We used to paint headers all the time with no flaking. My boss at the time raced late model circle track. Sand blast them and paint them with Imron (single stage, not basecoat clearcoat) DO NOT PRIMER, The primer will burn off taking the paint with it. Just IMRON, its very glossy and retains the shine (but also expensive).