is it possible to put 2 infiniti basslinks in? how does one basslink sound with the stock system?

 

1 sounds great. 2 would give you better impact & more low end punch. However it will not be as good as a box with 2 10's & an outboard amp. The basslink saves space with 1 if you had 2, that would take up as much space as a regular dual 10" box.
Do a search. Many posts on how the basslink sounds.