marcopol
Registered user
I already have a standard 2009 GSA R1200. Just bought a 2012 R1200 GSA twin cam TU. There is a considerable difference in the exhaust noise between both bikes The 2012 is very loud, almost Thumper like. I checked and it has an undamaged OE exhaust. Should it be so noisy compared to the 09 ? Are the exhausts interchangeable ?