if you check the graphs, a GT28BB with a 0.60 A/R exhaust wheel would be perfect for a *stock* M50 up until 6400rpm, then it'll begin to run dry. It'll spool up very quickly though. Took me a lot of research before I settled on that for an M50.
Don't think I'll end up installing it though.. not worth it for me to do the whole engine swap and everything on a daily driver.
Last edited by Justin e36; 10-19-2006 at 04:58 PM.