Breazer hoses diameter question

[TOLMACH]

Need help pls with diameter of the two top breazer pipes (1 and 2 in the picture). Like 3/8, 1/2, or whatever diameter would I need to replace or extend those hoses.

(The engine in the pic is from prius but I guess we have the same top covers.. anyways I need to know what we have on our 1NZs)

Thanks

P.

[CTScott]

The rear on is approximately 3/8" I.D. and the front is approximately 5/8" I.D. . I believe that they are actually metric sized hose, where the rear would be 9mm I.D. and the front 14mm I.D..

[TOLMACH]

^ Awesome, thank you!!