Air Intake Hose's

I've had a little search to no avail though.

But the Standard air intake hoses, Does anyone have or know the dimensions of these three hoses? Would be very grateful if anyone did!

Cheers for any help!
 
Also there's a another pipe going into what likes the air feed? having a look at the KTR silicone kit, it passes that, so is it needed?
 
That other pipe is for the air resonator.

It doesn't really serve a functional purpose. All aftermarket pipes by pass this, nothing to worry about :smile: