I drive a 2013 veloster turbo and I’m thinking about getting the borla s type axle back. How does it sound? Is there any pops or crackles? And does it fit good

Installed a Borla S Type Axle-Back Exhaust System and since the day of installation,but there is an obnoxious whistling in the 5K+ RPMs. Here is a link to the video of what it sounds like. Please any help is appreciated.

I have a 2015 Turbo and want to install a Borla Exhaust Systems 11821 Axle Back Exhaust ‑ S Type Series. Does this fit or are modifications needed? I am looking for bolt on, but the company has not tried to install it on a Turbo version, although they say it works on the normally aspirated one...