Originally Posted by kismetcapitan
. Whatever they did to the stock bike for midrange for the 2012 model year carried over to the exhaust's performance as well; I clearly recall a massive torque hole in the midrange of the Akra system on the 2010 bike.
For 2012 model they added +1 in the rear sprocket, that is why it got better mid range power in addition to some ECU tuning.
i drove a 2011 S1000RR with full shorty Akrapovic exhaust and hell it was lacking low and mid range torque compared to my 2010 S1000RR with ARCS exhaust!! and add to that, the loud crap sound it made
I just ordered a long Akrapovic exhaust for my other 2011 S1000RR friend and he is very happy about it, and when he passed by, it had a nice tone and wasn't that loud.How many times i should thank my God that i didn't purchase that shorty Akrapovic system? Every single day LOL