I like making stuff but the itg looks the best quality. I am not a fan of re using the the squidgy standard hose on the throttle body.
Over the years people have said keep the pipe work away from the rad and the filter or air feed out of the engine bay and its all much of a muchness.
I made mine out of stainless but alloy and sillicone joiners will do the same jome for less.
Less than £90 all in