Wrong! I will be making over 400whp on a spearco tmic with a fp green on E85. A front mount won't have heat soak issues, but a spearco is probably the best tmic out there for our subarus that performs well with medium sized turbos. My last green/spearco on CA91 oct put down 333/325 whp/wtq and that was only a 7cm hotside that spooled quickly. LOLVTEC was running a 3076 with a sperco on E85 and put down 410whp on ej207 on a conservative tune.

 

Let me try this angle. Who is going to tune it? Most tuners out here will have thier own reccomendations. With them having tuned multiple cars they with know what turbo will meet your expectains with your power goals.

 

I'll chime something in here. OP probably doesn't need a turbo upgrade yet.

 

If you feel you have reached your limitations because of the turbo feel free to upgrade. As far as a specific recommendation I have no idea what your looking for.
Is this a track car?
A daily driver?
If you post things on this forum with out explaining things like members have said you will probably get sarcastic answers.
Talk to your local tuner tell him everything you want out of your car and he will recommend something.