This may help you understand the natural sonic characteristics of the 3.5L V6 vs the Ford V8. You may have noticed that under 3k on the Raptor, most of the exhaust systems sound pretty similar (ignoring loudness) but above that, some will try to alter the sound of this engine with varying degree of success.
https://youtu.be/qHPK2J0WTSM
Vs
https://youtu.be/YRuwp6waduk
https://youtu.be/qHPK2J0WTSM
Vs
https://youtu.be/YRuwp6waduk