986 exhaust header compatibility
 

Hi all, a newbie here so apologies if this has already been asked - I've looked but can't see an exact answer. I need a replacement left hand (facing forwards) exhaust header / manifold for my 2.5 986. I've been offered one from a 2001 3.2 that looks pretty much identical (mine's still on the car so can't tell if they are actually identical).
Can anyone tell me if the two are interchangeable?
Thanks in advance