Both SCS and ProFab are great boxes and are pretty much indestructible. Like mentioned in an earlier post, stay away from the early pro Fab 1" wide quick change boxes unless your horse power is under 1000. One advantage to SCS is the quick change gears can be mixed and matched at some ratios basically giving you more choices for less money. SCS also gives an "in person Cash discount". SCS also has a zero drag setup that supposedly saves horsepower. I am buying SCS for my latest build this winter because I cant find a good used setup.
RK
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