T28 compressor outlet flange

Do you need to clock them to suit the Z adapter pipes or is the diference not enough to worry about.

 

I've seen them for sale. If not Coz, Z1.

 

Sorry, I'm thinking of the inlet flanges. Oops

 

Thanks guys, was looking at photos thinking they didn't need them then realized that the flange had been cut off and welded back on.
Ive Just finished making a set

 

I just made the 3 bolt outlet adapters and cut the 2 bolt inlet flanges off the factory pipes. Will weld them back on in the correct position
or have i got it backwards lol