Noice.. so it sounds like the M54 can be pretty capable. As I've said, it won't compete with the iron-blocked M3, but it's not as weak as some of the rumors floating around.
With a little more info hopefully we can sticky this so in the future guys aren't afraid to throw over 400 ponies at this or make assumptions that it can only take 340hp at the crank.
I guess the next question is when the rods start to give out. Essentially, with a rebuild this motor can take 450 at the crank? Also we've yet to mention any of the drivetrain components.. where did you guys get your clutches or upgrade your autos if that's the case?
'03 330Ci 5spd PP
Alpine Type R, MRP 500