Making a Barra sound good?

[Cobra]

Barras, especially turbo versions, are known for being very good things. Of course, I'm preaching to the educated on a Ford enthusiast forum.

In saying that, one thing even the most ardent Barra fan will admit, is that they generally don't sound all that great. Sure, some sound better than others, however, universally they just aren't renowned for being a great sounding engine.

For anyone who has followed the American YouTuber, AdamLZ, you'd know that he fitted a Barra to his GT350 after the original engine met its demise after catching fire from a leaking oil filter.

For those who haven't followed his progress, I suggest you search for him and have a listen to his car. It is by far the best sounding Barra I've ever heard. So, how is it that a Yank got hold of one of our motors and made it sound so damn good?

I've heard plenty of Barras with all different exhaust combinations, from single 3.5 and 4" systems, to twin 2.5". The only off-the-shelf setup I haven't heard is Manta's twin 3". I have a twin 2.5" Manta on my F6X and it sounds fine, but it's hardly got what I'd describe as a memorable note.

What is it about Adam's exhaust that sets it apart? Well, it's essentially the GT350 factory axle-back, with some modifications to merge a custom 4" cat-back section to the factory twin system. I can't work out why it sounds so good, but it does!

I have a Manta on my F6X, as previously mentioned, and I'm going to fit a Venom twin 2.5" exhaust to my FG shortly. Currently I am running a straight-thru centre muffler, which sounds a little louder than stock, but not exactly a great note.

What's everyone done with their Barras to make them sound better? I'd love to hear what custom combos people have done.