Heard this at the track recently with an Akra slip-on.
It's definitely louder and really give the Akra the tone a lot of people say is missing.. but it's louder. No idea on drone, but it's a much meaner sounding exhaust with this X-pipe.
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."