Good Bye Flowmasters!

Well, as I get to drive my car more & more I am realizing that I too don't like Flowmasters.... They are starting to annoy me when I drive my car.

Dynomax it is, but what size? My Flowmasters are 19" and JEGS advertises 16" Dynomax's. Should I shop elsewhere? I'd hate like hell to "modify" my exhaust any more then I have to if I can't find the right lenght.