Interesting video showing the difference between max stage/effort cary jordan tuned on e85 car and the CURRENT bimmerpost 60-130 #1 car for stock turbos (plus 300 lbs of extra weight)
F80
AWE HE
Am IC
VRSF Intakes
Midpipe
Catback
Downpipes
Plugs
Cary 2+ e85 Tune
F82
Downpipes
BMS Meth kit
Psf Custom Tune
https://www.youtube.com/watch?v=I0Q2VTv-mIA