Either you're way to sensitive or something is wrong with the install. It's not loud at all inside the cabin. It's pretty loud outside when the engine is cold.
Try a race exhaust and then you'll see what drone is.
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."