This does help silence the sound of the BOV and turbo some but hurts power.
Take this out.
Remove Air Can
Under hood temps are higher but the turbo can suck more air in with the air can removed.
This is done to help fuel economy and emissions.
When you block the EGR with a plate (which can be made from any piece of scrap metal), the intake manifold will not get as hot at idle/cruising.
This helps keep the air intake charge cooler which makes more power.
Bypass coolant lines
During the summer, this feature really isn't needed.
The problem with running coolant lines to the throttle body is that it heats up the throttle body with engine coolant.
Bypassing these lines and basically have the lines loop around the throttle body will help keep the intake charge cooler and thus making more power.
I suggest doing this mod before trips to the track or during the summer.
Crush the BOV