@mart did they try and dyno in 4WD? You can’t you need to disable the rear drive and do as FWD only, as it over speeds the rear wheels and isn’t a permanent 4WD system. So I’d guess your readout is meaningless. (Mountune I believe in the 380 setup provide a software switch to disable the rear for dyno use)
Magnetic Grey with all the best bits
FPM375/COBB/MSD- Quaife LSD, DSC+Tractive Suspension, HJS200 cell sports cat and MT Cooler. Sync3 upgrade.
Was UK seller for DSC & Tractive Active suspension !!!