Flowmasters do have a unique sound but as a peformance mufflers are the most restrictive out of all. If I were you, I would go with Dynomax super Turbos, great sound w/o convertors, not too loud and have good flow. Also flowmaster makes a muffler called Hushpower 2's, we put some on a 39 ford coupe with a 350, sounded good, they are decent flowing, made of stainless (409 or 304 depending on how much you wanna spend) and they have cool shell technology, meaning you can put it up against a floor board and not have to worry about it. Magnaflows have the best flow on the market and a lifetime warrenty, but again are an absorbtion type muffler (like a glasspack) but the bigger the muffler you put on the less splatty, and quieter it will sound. Flowmaster's is what everyone knows because of their good advertising. Even our Jobber supplier will tell you they are junk and if they weren't in such high demand because of advertising and their unique sound they would quit handling them. I would go with the super turbo's from Dynomax if you want something not so loud and less splatty.