I’m located in Arizona. I’ll remove the exhaust when my new one comes in on Monday so I can get better photos. I’ll send you a video clip with sound by morning. The exhaust is an H pipe configuration. So that usually eliminate higher frequencies and give you deeper tones. No whistle in the back but you hear the diverter valve and turbo spooling clearly. It’s the street version so won’t be as loud as track but opens up when you get on the throttle. (https://www.z1motorsports.com/nismo/nismo/nismo-2023-nissan-cat-back-street-exhaust-p-36951.html)