If you want nicely tuned engine noise you cant go past a paramount back section IMO. Awesome on the 4.2 SC, and very loud. I had one on my 4.2 XF and it was the best engine noise I've heard other than an Aston, going to a 5.0 was a massive disappointment.

I dont know how it compares to the Mina one though.

 

I will tell you the secret and it will forever change your life and understanding.

Kinda like a scientist working for Exxon did mine when he pointed out, science does not really know with certainty where oil originates. Folks just repeat what they read as gospel and so the folklore perpetuates.

Folks with Mechanical Engineering backgrounds get very worked up about the exhaust issue because they dont have a clue that in an exhaust, none of the rules of mechanical sciences (velocity, volume, etc) apply.
Because an exhaust effectively is an acoustic device and the laws of acoustic sciences come into play.
Acoustic science is extremely complex because there is such a thing as anti-energy. So in mechanical engineering or electrical engineering, a machine or a power source has only a positive output- or singular output. An acoustic device has both positive and negative energy simultaneously in equal amounts. In fact that's what a muffler or silencer is, it uses the negative energy to cancel the positive energy. Imagine if you could brake and engine with negative engine power, no such thing right. Or in a two-stroke engine the negative wave of the exhaust is used to a positive outcome of acting like a valve.

So, things such as truncation, which would have a deleterious effect in the mechanical world when we think hoses and such. In the acoustic world they have a net positive effect if you know what you are doing, and convert the negative destructive energy into positive (inverse of a muffler) or in the case of a loudspeaker a truncated port.

Acoustic science is complex enough that we dont completely understand it. And why all the sciences in the world cant build a Stradivarius or a 4000 seat amphitheater that require no electrical amplification. And why the best sounding and performing exhausts are built by artisans and not engineers.

 

Standing waves, thus the term "tuned exhuast/port"....its all physics.

 

Bingo, one we dont perfectly understand and there are little to no measurement devices for.
Only discovered and not fully understood in 1860
Gas turbine engine by contrast developed in 1790
Acoustics is the final frontier