I know it's for the valve cover breather. However, I don't plan to return to stock, and my new intake provides an entire new hose that does not require use of the blue/green clip.
Thanks for the free bump!
For sale is my old intake, the MazdaSpeed CAI. This is for the MazdaSpeed6 2.3L DISI Turbo.
Pipe itself is in fair condition, with some scratches and defects here and there. They have been polished from it's original condition to the best of my ability by hand.
One of the rubber...