Anybody know which size to order for the 05 Mini-S?

I assume this sizing thing is in reference to the hose diameter. I am out at Sea so unable to go out the garage and check.
Thanks

 

i never heard of any choice of size anyway, unfortunately i dont know the size off hand. i have a m7 catch can and what ever it came with was right i dont think it would change from any year model. i have the 2005 mcs. hope this helps

 

6 mm is a rather large gap, i would double check with someone to make sure that you get the correct CC.

 

I asked the question of what size hose to use to connect the OCC in this thread (see the last post for answer)

https://www.northamericanmotoring.co...ighlight=catch

 

Thanks, So I guess the 9mm would be the correct one to buy.