exhaust choices/options?

[Clip]

https://935motorsports.com/catalog/product_info.php?cPath=79_14_16_31&products_id=158

that's the one i saw that came in 65mm. iirc, thats pretty close to a 2.5" dia

 

[SupaMan]

https://935motorsports.com/catalog/product_info.php?cPath=79_14_16_31&products_id=158

that's the one i saw that came in 65mm. iirc, thats pretty close to a 2.5" dia

I quote from your 935 link.

"The original legal upgrade for MA70 Turbo or NA. It has 2.5" mandrel piping which is still a world better than the stock exhaust system. Will increase boost slightly on the turbo car. This is fine for those wanting a basic 300HP capable system with a quiet, legal sound."

unless hes wrong it does say 2.5 inch. hopefully thats not the sport exhaust they have REAL bad rusting problems IIRC.