B Blueboy New member Joined Aug 12, 2006 Messages 993 Nov 5, 2010 #1 What is the opening on the front cover of a s475 turbo,4" or 5".
Olee Poole New member Joined Aug 1, 2006 Messages 1,046 Nov 5, 2010 #3 5" inlet 5" outlet with a T-6 flange..
NickTF Single turbo turd. Joined Jun 4, 2007 Messages 5,887 Nov 5, 2010 #4 Std cover is 5". The bigger "race covers" are 5.5"
