Best subwoofer solution for Tesla for sure.
OK so I am the guinea pig for this box and I could not have been happier with the work that Allyn did for me. The bass is clean, tight and low and it's all without sacrificing a ton of space. Worth every penny as a fiberglass box alone is typically $500-$1000 plus install. I don't know if it is a DIY type of install because I am not that confident taking my car apart.
Pros:
Way better bass response compared to factory sub which was lacking on the low end.
Bass remote is great to turn it down when kids are in the back or wife in the car
No loss of storage space
Looks stylish and blends in with interior
Balances with my mids and highs -- I have the premium Tesla audio system
Cons:
No grill option just yet so you have to be careful. NVX said they are coming out with a grill.