Whats happening guys?, Engine pipeing Options

[mikee]

Hi guys, i need your help

I'm not to sure whats happening with the engine bay and i want to return it to stock and don't know how. So if anyone could help me out that would be appreciated

Is the bov plumbed properly? Because i don't think its working and I'm getting compressor surge. The bov looks as thought its been opened and glued back together. Is the breather filter in red fine there? What does it do?




What does this do and what is this plug used for? (The air conditioning has been removed- just in-case that helps)




How do i remove this boost controller and plumb it back to normal?




Where should this be plumbed to?



What is meant to go where the gray marking is? What is meant to go where the pink is? But most importantly where should the brown pipe be plumbed to?




Just out of interest what does this unit do?





Also, does the internal diameter of the pipe used to fix up the plumbing matter?