View Single Post
      02-20-2013, 07:47 AM   #2
bbowers825
New Member
0
Rep
5
Posts

Drives: 135i
Join Date: Feb 2013
Location: Maryland

iTrader: (0)

I can't imagine why you might be asking this, but I would assume they limit the amount of boost in reverse so you don't break anything. The last thing you want to do while backing up is boost 10 psi lol.
Appreciate 0