So i was thinking is there a way i could replace my stock 10" sub with a JL W3 somehow?
I have the JL sitting in my room, im waiting to buy a amp so i can put it in as a complete system but this just came across my mind.
does anyone know if theres a way i could make it fit since the W3 is a 12"
and if the stock amp would push it pretty good?

 

No and No.

The factory housing is for a 10" sub, so it would take a lot of modifying for it to "maybe" fit.

The amp it self is powering all 5 speakers, front, rear and sub, and by no means is pushing enough power to make that sub move.
If you wanted to go this route, get an amp the will power that sub and grab yourself a LOC and just wire it in.

 

Yeah I kind of figured it wouldn't lol. It was just a thought.
But Ima just get a box and amp so I could put the jl.
I was also wondering, do ppl leave the factory sub in when they add let's say like a 12 like I am?? Or do they disconnect it?

 

at the very least disconnect it (plug on top) but you can pull it out all the way if u want