What turbo is just a little bit bigger than the stock Evo 8 turbo, is a direct bolt on, would not require any modifications to the current fuel system, and could produce about 50-70 whp more than stock using a SAFC-II to "tune" it?

 

why spend that much and not just get boltons and cams and get the same or more power with safc?

 

I already have a full turboback, but instead of opening the engine I wanted to see if the same power could be obtained with a slightly bigger turbo.

 

i don't think you'll have much luck... if i'm not mistaken that twin scroll design makes you have to make some good changes unless you upgrade to something like an 18-20G in which you'll be redoing the water/oil lines, intercooler piping, and the O2 pipe. I'm not 100% but i'm sure that's what's involved.