Mitsu/Garrett T28 turbo

Can anyone tell me possible specs like hp output for a T28 with 50 trim?

I think t28's are pretty close to evo III 16g's, IIRC. If I am remembering correctly, I learned that from my first thread here on the E/T/L section of AF.

What do you mean, T28 with 50 trim?

T28s spool a bit faster, but lack the top end of 16gs. You can still probably get 340 hp out of one on a good tune.