i used the dynomax ultraflows on my dart i like them a lot. i just built a new system for it 3 1/2" X pipe 3" from there back to the bumper with a 4" twister muffler for a rosonator. its pretty streetable. anyday now im going to yank the slant out of my duster, it has a dynomax super turbo with a glass pack for a rosnator. im going to do the same when i put the 400 in it. the super turbo is a really good street muffler. mellow, they flow really well and give less rosonance than most mufflers. i have built a lot of exhuast systems for my cars and friends and family, i dont think i will ever use flowmasters again. they sound awsome on a high compression big cam big block, but for cruising i just dont like them or anythign that resembles them. i like the straight through mufflers like magnaflow, ultra flo, borla, dynatech... most bullit mufflers are straight through with packing, same idea, but less packing they are going to be louder.
