I bought a new JL stealthbox. If you have a good head unit and a strong amplifier with a very low THD index (and it sounds like you have), it will the next best thing to a custom trunk box without limiting your cargo space.

My history with a JL Stealthbox; I bought my first steathbox for a new Toyota 4-runner over 14 years ago and it was powered by an old school Soundstream amp.... I wanted to keep my cargo space clear and I remember the output was awesome.

My current Stealthbox fit and finish is top shelf, however, the Sub is not performing at optimal conditions (although this has nothing to do with the Stealthbox itself). I am working through input issues with my factory head unit, so I have ordered a JL Cleansweep to provide a corrected signal to my PDX-5. I am also adding a separate Alpine PDX-1 for the sub.

My X5 is going back to the stereo shop on Thursday to accomplish this. Once I get the vehicle back, I will be able to give you a better review.

__________________