known as a t2 familey, t25 and t 28
now all t28's are the same. some are just compressor upgrade wile others ( better ) ones are turbine and compressor upgrade. The prob is that the DSM people are so fixed on a name. WTF we have 3-4 turbo's "called" 16G when only one is TRUELY a 16G. "Trim" was invented to help advoid this but marketing doesn't like it since a trim can be lower and flow more ( case in point a 56 trim out flows a 57 trim. )
BM-
http://www.moddedmustangs.com/forums...rim-vt730.html
Trim info.