Pretty simple. I take off the entire Intercooler and place it in my driveway next to the car. put plastic sandwich bags around the boost tubes to ensure no moisture gets in them, and do the same thing if you have an aftermarket intake. I spray the whole engine down with an engine degreaser that you can get from autozone or sears. Be careful when spraying near ECU and Air Intake. Also spray the Intercooler with the degreaser, alot of hidden dirt gets stuck in those fins. Let it sit for 10-15 minutes. Directions won't say to, but I use a wire brush or wheel brush and scrub the places that look really dirty. Once I'm satisfied I hose her down. When spraying down the top of the engine(where the spark plugs are) Be very careful not to let too much water collect there, have plenty of rags to soak up the water because it could seep into your engine and cause some problems. Let both the engine and IC dry and put everything back together. Then spray your entire engine bay with some sort of Engine Bay Dress Up, I get mine at Autozone, it's a black can, can't remember the company, but it works wonders and even smells good. Don't spray too much, but do 2 light coats. Everything will look very wet, but don't wipe it yet. Let the car idle for 10 minutes to help with drying. Do some touch ups with a terry cloth to the areas that didn't dry completely. Wow, what a long post for something so simple, but I like to be thorough.
