View Single Post
      01-07-2013, 12:23 AM   #4
Basheezy
Bashar
Basheezy's Avatar
United_States
9
Rep
789
Posts

Drives: 2008 BMW 135i
Join Date: Jun 2010
Location: Bay Area, CA

iTrader: (2)

There's not much of a drop off in boost when shifting in a step. So I dont think you're gonna hear much blow-off valve noise between shifts