With the interior pretty much finished, I moved onto the rear end. I cleaned up the rear Trick Flow cover and it turned out really well. I used brake clean to get the grease off, then used simple green to get the balance of the dirt off. I then sprayed it with oven cleaner and let it soak in, then sprayed it down again, and let it sit. I washed it really well with water and then let it sit and dry out. It looks terrible when it's wet, looks blackish, but once it dries, I think it turned out great. Looks like new.