No problem with cleaning that up a bit mate, looks like it could do with a skim too.
The pipe with a T piece to atmosphere is a crude form of boost control, basically the size of the outlet bleeding to atmosphere will determine your boost level, bigger = more boost, smaller = less boost, i'd replace that with a lockable bleed valve at the very least (although JS may have done it to prevent the user altering their boost easily ) and once back together get it setup