Ok, we get it. Three different threads on the same subject- two with the same name. But I get it, you don't want to cut anything or damage anything on your exhaust and you're willing to part with $100 to do it. So, no one will tell you the "top secret" sound enhancing secret of the ST? I will. Send me the $100 and I'll tell you the secret, but you have to promise not to tell anyone else, ok?
Let's just say you'll need about a 10" screwdriver and a good flashlight. This will allow you to locate the Helmholtz valve in each muffler via the tailpipe. Once removed, you'll hear a wonderful growl at WOT, but it will still be quiet at idle. You'll need my explicit instruction (thus the money), since if you do it wrong, the muffler bearing might be damaged which will cause leaking blinker fluid and will void your warranty.