Hi all. Can anyone tell me what the diameter is on the ARC V2 oil catch can hoses. I want to fit some stainless steel braided hoses but want to know the correct sizes.

Thanks

 

Just measure it ....

 

The hose connecting the Driver side head cover to the intake pipe measures 15 mm and the hose connecting the PCV valve which is the Passenger side head cover to the lower plenum measures 9 mm and this is pretty much the only two available sizes among all JDM Catch Cans

 

Thanks Netshark