Can I get more SPL or better sound quality from the stock sub if I dynamat the rear deck or trunk?

 

Nope meant for free air it uses the trunk as a form of a box. I covered the trunk and deck in bquiet (same as dynamat diff name) nd I only covered the metal on metal spots ont he car that vibrated when u hit it.

 

Did you hear any difference in sound?

 

HUGE difference no more rings, dings, slight loose noises, solidity increased cabin noise reduced... the only thing that squeaks is the back part of the seat... i forget to tighten the top bolts all the time. I did the doors as well, floor panels i couldnt go nuts on the ceiling because i took the headliner down to do the suede and if i was gonna do it i woulda covered everything n then id be fishing for pin holes......no thanks lol

 

One thing I did was cut out the trunk liner below the sub, ut has some padding ont he back and I think it impedes the depth of the sub. I feel liek the sub sounds a little cleaner now with a tad more depth, nothng dramatic, but every little bit helps with this pathetic ELS in the TL.