Just installed these puppies myself last Saturday. Tested them on Sunday through the Smoky Mountains, up the Tail of the Dragon and Across the Cherohala Skyway, an EPIC drive to say the least.
Attached are two videos to give an audio representation of the system. A GoPro is attached to the bumper.
ACM Test pipes, clamped to OEM X Pipe and a Megan Racing Exhaust.
(My friend with an Akrapovic slip on was jealous of the sound, called it exotic when we were blasting through the mountains.)
Enjoy the videos (Audio Only) and let me know what you think!
Startup, daily driving style, RPMs <5k
Some WOT runs with Rev Matched down shift blips.