Hello,
I'm new to this website..just picked up my new 2015 ZL1, can't find the stock 10" Boston Acoustic sub anywhere ? can anyone help me ?when I built it up on the chevy website , it clearly stated the ZL1 come with BA 9 speaker system including one 10" sub ??

 

Unfortunately, not a lot of 5th Gen owners on the site at this time, so no one currently active that I am aware of with a ZL1. We had the first owner of a Z28 here for a while, but haven't seen them in a long time.

The GM website shows that the BA 9-speaker system, with 10" sub is standard equipment on the coupe and convertible.

 

The best info I was able to find says that the sub is located behind the center of the back seat.