would i loose dbs buy fiberglassing my interior or gain or stay the same

 

try it let us know

 

heh heh ya try it

 

hahahahah

 

how did i know you guys were gonna say that lol

 

hard to say you need to look at it on how the wave hits
there will be places in your set up on YES and there will be places where it will have a loss
so look into how the waves of a speaker moves

 

it would just be glassed in the hatch look around the sub box and the backseats comming out so there would be some glassing there to

 

what car /truck /suv ?
think why is the crx so good in spl

 

98 eagle talon

 

Just fiberglass on its own ontop of metal won't do very much. If you are having a problem with your roof or side panels resonating or vibrating, there are solutions.

If your panels are 'ringing' or 'vibrating', then good old deadliner will cure it. If your panels are actually being expanded and contracted by the pressure inside the vehicle, and are visibly moving in and out, then you need to increase the structure somehow. An inexpensive way is to bolt the panels together using re-bar... but its not very aesthetic. Maybe you could weld in thick steel reinforcement panels, that would surely help.

I suppose if you created a complete fiberglass 'shell' inside the car and it was thick enough (3/4" or more) and reinforced it properly, you could increase spl dramatically (depends on how weak your ride is to start with).

I wouldnt fiberglass the metal directly, it will eventually seperate and you will have the rattle from hell.