So I always wanted to confirm the info about the OEM exhaust, Prodrive components, Stromung, etc. Now I have and here are some pics:
First, any long downpipe or center pipe that ends with a donut has the following internal diameter...
The above happens to be the Prodrive center pipe.
Next, the OEM rear/resonator pipe has the following internal diameter at the outlet:
Then the Stromung rear pipe,2.5" has the following outlet inner diameter:
Enjoy my old Diesel Mercedes in the Background..
Then Stromung VS OEM, at the inlet:
The Prodrive Axleback has the following inlet inner diameter:
I think this is interesting info, even if it applies to old cars...
Next I will take a look to see if the OEM resonator is baffled or straight-through..