It does not look like a rats nest lol... It's clean there are just 2 heater hoses, throttle and air sensor cables, and the injector connectors, fuel lines and rail. It's clean and modern. Does not need a cover IMO just a hose dress up kit.
This is a rats nest btw.. (emissions rack).
http://media.photobucket.com/image/1.../ratsnest2.jpg