Do you think this exhaust would work well on my turbo miata.It's not quite 2.5 in" ,but close?

http://www.good-win-racing.com/Mazda...t/11-1002.html

 

I would just get the muffler of your choice, take that to a local muffler shop and have them make it for you. If you want mandrel bends, you can get them off some of the guys here on the site or you can go through somebody else. For that price you can get the enthuza exhaust that are made for a turbo car, 2.5",2.75",or 3". Just contact the owner and he can hook you up with an exhaust.