Can anyone please tell me the diameter of the standard cat to exhaust coupling on my S3? Thanks.
ayfreetee Registered User Joined Feb 5, 2011 Messages 1,505 Reaction score 296 Points 83 Location Somerset Sep 22, 2016 #1 Can anyone please tell me the diameter of the standard cat to exhaust coupling on my S3? Thanks.
S3 Hilife It's an addiction VCDS Map User Joined Dec 12, 2013 Messages 968 Reaction score 595 Points 93 Location Wisbech, Cambridgeshire Sep 22, 2016 #2 I believe it's 63mm
ayfreetee Registered User Joined Feb 5, 2011 Messages 1,505 Reaction score 296 Points 83 Location Somerset Sep 22, 2016 #3 Many thanks.
