You can now search for anything throughout the entire website. Articles, downloads, pictures or forum posts. When you do so, as you enter the search term you will be presented with some suggestions like this (I started searching for "exhaust")
You can then select any helpful suggestion and hit "Enter" to go straight to it.
The new search system also understands words like "and", "or" and "not" so you can enter things like "paint and not yellow" to find all the articles that contain the word "paint" but do not contain the word "yellow"
All this comes at a price though. There is a lot of content on this site - several thousand articles alone, so searching for something complicated may take a while. Don't be alarmed if it takes as much as 15 seconds to locate what you are searching for.
Have fun.