Here's a sound example of my BMW F650GS Dakar "Der karierte Esel" (which translates to The Checkered Donkey) equipped with stock exhaust pipe.
What you will hear:
Technically, the recording was done with a Soundman OKM II professional microphone, mounted on a Dummy Head, connected via a Terratec Aureon 5.1 USB soundcart to a Dell Latitude notebook. The recording was done and mastered with the software CoolEdit96.
Since this is a Dummy Head recording, you better put on your headphones ...
And on we go: BMW F650GS Dakar with stock exhaust pipe (mp3, 760 KByte)
And here you can hear my Transalp (mp3, 800 KByte)