If it's a good running .46 it should be plenty. A m.c. muffler / macs header would give it all you would need. Or you could try a tower muffler, they help quite a bit and lots of guys are using them. My son and I both have sledges with TT 46's on them. I use a m.c. muffler and my son uses a macs one piece muffler.
JW
JW