I seem to do rusty exhausts the same way these days. Namely, texturing with Mr.Surfacer 1000 and then application of the LifeColor rust paint set. It looks a bit stark at this stage but I trust that it will be toned down later.
Sculpting some worlds
Scale model building - amateur style
World War II with Scale Models
Model builder, IT nerd, Raspberry Pi herder, history buff
Chris Wauchop Scale Models and Photography
A Miniature Wargaming Blog
Miniature painting, wargaming terrain tutorials, reviews, interviews and painting guides
Let's build.
Reflections in Scale