Ok i did a saerch but not much luck..

take a look at these pictures, one side has a 10 blade design (5 divided)
and the other side has a 12 blade design (6 divided).

Also the manifold doesn't seem that was taken off of an fd.

Can anyone identify this setup? cosmo13b? 3 rotor?

http://pg.photos.yahoo.com/ph/kavong...?.dir=/ee41scd


PS i would've attached the pictures here but the file size was too big and I'm at work so I don't have any size editing software

 

There! i'm home and attached pics

 

I think these is a20B set

 

arent the 20B twins smaller than the 13B? i dont remember where i heard this from but when i read this, that thought has been running in my head for a while...

 

those are the cosmo 20B twin turbos. Believe they are less efficient than the FD twins. The DP flange is only 3 bolt(cosmo) and its a lot more restrictive then the flange on the stock FD