I took to our parts bin cleaner in the shop i'm doing the swap in and scrubbed it to get the built up dirt/grime. Then I took carb cleaner to it with some wire brushes to get the deep crap out. Steel wool and it came out very clean. I sprayed it with some high temp paint. This is a temporary thing though... i'll eventually get it powder coated wrinkle black for longevity as well as all the other parts in the bay.
The Ashspec piping is superb. it's sexy as hell in person... it was a quick shot I took because I was too busy rushing to install the rails and getting my area setup to leave. Z1 throttle bodies are my next mod along with an Escort front, Powertrix kami replicas and peru's rear bumper.