Moved from the CT5-V forum. You'll probably get more responses about ATS-V exhaust options here in the ATS-V forum.

Welcome to CF!

 

I have TP catted downpipes, with a corsa exhaust. It is very loud on cold startup. Supposedly it is louder than my C5Z06 with LT Headers, high flow cats, x pipe and Borla bullet mufflers.

Cruising there isn't too much drone, but I wish the exhaust was valved so I could have a quieter cold start for those late night or early morning start-ups. Exhausts are expensive for these cars, but they do sound good with an opened up exhaust.

 

I have TP catted downpipes, with a corsa exhaust. It is very loud on cold startup. Supposedly it is louder than my C5Z06 with LT Headers, high flow cats, x pipe and Borla bullet mufflers.

Cruising there isn't too much drone, but I wish the exhaust was valved so I could have a quieter cold start for those late night or early morning start-ups. Exhausts are expensive for these cars, but they do sound good with an opened up exhaust.

Thanks for the info! I'm leaning towards just going with ZZ Performance exhaust since everything else came from them.

 

You are forgetting Borla.

 

Hi, I want to buy an exhaust for my 2018 ATS-V, new or used one. I’m from the Czech republic, but I have some friends with US adress, so they can help me to send the exhaust to the Czech republic if the international shipping will be a problem for the seller. I think the aFe exhaust sounds best, but if you have any other brand, please send me some details.

 

Someone just posted a thread a few days ago asking for exhaust recommendations, so I've merged your thread into that one.

See here for previous discussions of exhaust options that people have tried:

https://www.cadillacforums.com/threads/new-exhaust-system-from-zzp.1105193/?post_id=17894784#post-17894784

https://www.cadillacforums.com/threads/exhaust-question.949577/?post_id=16471233#post-16471233