This is what I received when I asked Akrapovic when thy would be available for the B/GA:
Thank you for your interest in Akrapovic Exhaust Systems. Apologize for the delay in getting back to you as I had to do some additional research on this model. Our Bagger system (Which will fit this model as well) is currently in the final stages of R&D and is set to hit the market early July. There should be additional information on our website in the next few weeks. Please check back.
Nicole Allen, MBA
Motorcycle Division Team
Malo Hudo 8a
1295 Ivančna Gorica, Slovenia
"The mountains are calling I must go"