what is the size of an A3 backbox inlet?
B ben1 Registered User Joined Feb 8, 2011 Messages 7 Reaction score 0 Points 1 Location Isle of Man Feb 17, 2011 #1 what is the size of an A3 backbox inlet?
mikeyg Registered User Joined Jan 4, 2011 Messages 835 Reaction score 3 Points 16 Location Milton Keynes Feb 17, 2011 #2 Im guessing that they would vary depending on year/engine.
