Exhaust silencer question R1200GS

[Woooodentop]

Is the same Exhaust silencer fitted to a 2009 and 2011 R1200GS
Reason I ask is they seem to have different diameter flanges
Any ideas what the part number is for a 2009 model

 

[JerseyNeil]

They are different due to the exhaust valve flappy thing on the twin cam bikes (2010) onwards.

I am led to believe you can fit them on a later bike if you remove the flappy valve but I may be wrong.

 

[sagalout]

You have to fit the full system from an earlier bike, not just remove the flap

 

[comberjohn]

A complete system from any version will fit any of the marks, but you can't mix and match. The 2010> TC is 9mm bigger in diameter at the end of the headers to allow for the flappy valve and the silencer to match.