an other muffler quastion

last years I bought a 3'' exhaust system
from summit I also bought there race muffler
because they were cheap and was includ in the kit

I instal the all kit ran it all summer and those are way
to loud for me and the family in the same way the COPS

I m looking for much quieter muffler

so I found those

http://www.summitracing.com/search/?keyword=17793&dds=1

what do you guys think

I already ran dynomax muffler but there was 14'' muffler
do you think those could be much quiet than the 14''

thanks