DJ. You could change the baffels in your exhaust and get a little better performance without too much additional loudness. I put the Fullsac 2" CVO cores on my 11 SG and it no longer sounds like a sewing machine, but it's much quieter than the Rineharts on the 05. I don't think the CVO cores will fit you exhaust, but they should have baffels to fit your stock mufflers.
So you can change out your baffles without remapping?