How will a flowmaster exhaust muffler sound on my e46 3 series?

Im looking at a good deal for a high performance cat converter and a flowmaster muffler. I figured I could just buy both of them and cut/weld my exhaust to my liking =). yeah... think that will work?... maybe not but does anybody have flowmaster on their beemer?|||Like @$$...flowmasters are typically tuned to sound the best with V8s and your inline six will not create the same reverb a V8 does. Chances are it would sound rediculous. Get a proven exhaust system that works well with BMW.