Now its a BM 303 !
You may be referring to the 9.5 add on Total Kit(most Likely i'm guessing)
There tank only fits 08-12 (unless i'm wrong ,not for the 2013 from them)
I haven't heard of any clearance issues to date with that tank kit, and i know they are out there-
the "wing-ding" doesn't go below the "bat-frame".
You could also run the longer +160m resivoir line , and run the clicker to the bottom if you prefer but not nessesary-