Thanks man. Not sure what his method is but I'm sure I did something similar.
320, 600, 1000, 1500, 3000 then hit it with Mothers Mag and Aluminum polish. It could use some work, but this isnt really a show car, and nobody around here will ever see what I see in it.
yea when I first did mine I skipped a few like you did and had to go back and take smaller sand paper steps and it turned out much better the second go around.
I think the polished IRS cat-back is well worth it. It just really adds to the car. I always show people mine and if they arent car people they could care less. **** em I like it!