I love the exhausts that have that F1 pitch like the GT-One v5.1, Arc, and Fujitsubo. Last night, I heard the GT-One in person, and while it's insanely F1 like, I find it really loud as well. I have yet to hear the other two exhausts in person but have found clips online. I was just wondering which of these exhausts is the loudest, followed by which exhaust. Thanks!