Muffler silencer

[Cruz, Romeo]

Do you guys know if these things really work?  They're some type of insert
that is placed in the muffler tip.  Basically decreasing the outlet diameter.
I think they're advertised with the Apexi stuff.  I'm wondering if this is a
solution to quiet down my 3" system.  Already have a resonator and the muffler
I'm using is a straight thru Dynomax.  Maybe I should think about a different
muffler...  Anyone want a 3" Dynomax?  Thanks.

Romeo
95 turbo SE-R