Interested. This is for N18, yes?
I have a 2013 countryman s w a blown turbo.
How wide is input?
I have been looking at ported headers

 

if you still have it, I'm still interested

 

get the tubular header off aliexpess !
Its an AMAZING combo with a k04... that header plus that warrior turbo will make awesome power with 0 lag..
IM running a k04 too and that header helped spool time and high end flow ALOT even v my jcw v2 manifold.