Specs for exhaust

Hey guys, wanted to asked a question.

What should i be looking at as for specs on choosing exhaust part? (reso, cat, muffler)

I want to have a quiet, deep sounding but efficient exhaust system but im not sure what i shuld be looking for as for specs.

Do i just go by the brand name, size, material, etc etc, i have no clue!

Let me know what your input is...

As of now, im thinking magnaflow cat with vibrant performance muffler to keep it clean/subtle http://vibrantperformance.com/catalog/product_info.php?cPath=1021_1031_1053_1109&products_id=49&osCsid=03ffad99944b756868357698e5068ccd

btw, running a GSR in EK coupe if that matters, and thinking of going with 2.5'' size.

Thanks!

if you want quiet.. go RS*R

if you want quiet but deep go on ebay and look a "BBP" cat-back exhaust kit, it wont break the bank and it sounds great. i just bought and installed a "BBP" on my 95 teggy and i love it...