Exhaust to headers flange size

[Dimer]

I'm having a custom exhaust built, but my exhaust manufacturer wants the measurements of the flanges that connect the exhaust to the headers, so he can have them manuactured.

My car is stored for the winter and difficult to access at the moment.. So I can't measure it myself.

Does anyone have the exact measurements for the flanges that connect the exhaust to the headers?

I have Comptech headers (91 model NSX).

A drawing or photo with measurements would be great

Thanks in advance!

 

[A.S. Motorsport]

What are you exactly looking for flange thickness or the flange layout.

If you need the flange pattern get a used exhaust gasket.
Other wise following part numbers:
18115-PR7-A01
18115-PBY-J01