Finger lickin' good...
Ok, I've been reading on few different Miata forums, it seems that the way to get the most power out of the Greddy kit for the 1.6 is to run a 3" exhaust. IED uses/used a stepped system (2.5 - 3 after the down pipe near the trans. which I've considered coming from offroad bikes) I have a good friend/ custom auto shop owner that's interested in the project. He said to do some research and find out what was the best performance gain and we'd go from there. I originally planned on doing a custom 2.5" left exit exhaust, but then read about everyone using 3", but on a 1.6l? That's where I got confused. Any 1.6 turbo guru's out there that can help me a little with my problem? Is the 3" turbo back really necessary?