Finally decided to add a subwoofer in the trunk. Removable of course.

[MPOOR]

Since I do a lot of spirited driving I was hesitant to add a car audio shipments
inside the rear trunk compartment.

But after not being satisfied with Focal IFBMW V2 under seat mid woofer, I decided to add a two 10inch subs in the rear trunk along with a sub amp.
Sub box is removable. although it is not heavy, But I can notice the weight gain immediately. Will definitely have to remove them for track driving.
Since sub size being a 10inch with shield type box, BASS is very fast and punch.
Extremely happy since majority of music I listen are techno and other EDMs.

I would highly recommend adding a sub if you are sick of listening to shallow
mid bass sound.

https://www.youtube.com/watch?v=LvqMYZHMRXs


https://www.youtube.com/watch?v=xde6Xg71Dcc

[G35POPPEDMYCHERRY]

how much and how to do please

[larsek]

and pictures please

[MPOOR]

Originally Posted by G35POPPEDMYCHERRY

how much and how to do please

You know what ~!!! I got it as a gift from one of my buddy ~ who drives MB CLA~ and luckily it fit fine inside M3s trunk. So its a bit difficult say How much
exactly.

[MPOOR]

Originally Posted by larsek

and pictures please

I ll get back with some photos ~!!! woffer box is just sitting right behind rear

seat back. Nothing fancy ~ since it needs to be removable.