Equipping full Junkman parts transforms vehicle dynamics, though it focuses more on than raw top speed. For example, a fully upgraded BMW M3 GTR can reach roughly 243 MPH, but its ability to hit that speed rapidly makes it "broken" compared to standard career cars.
Do not add a Junkman supercharger to the BMW M3 GTR ; it is known to cause the game to crash, as the car's default configuration does not support it. nfsmw save editor junkman top
Provides up to a 15% boost in induction levels. nfsmw save editor junkman top
Junkman parts are unique performance upgrades that permanently boost specific car attributes and stack with existing Ultimate packages. nfsmw save editor junkman top