These are only 2 options because they’re only companies to make exhaust for 2021 IS 350
I would to know if anyone had experience with these companies and would like to give me feedback on which you guys prefer? I can link videos for reference down below

Apex
https://youtube.com/watch?v=-iq3br_EKx8&feature=share

Ark
https://youtube.com/watch?v=LH2VDFzdZfo&feature=share

 

Both companies make quality exhausts.

I have apexi currently and cant complain. Switching to Ark midpipe since i am adding headers to reduce the rasp

 

Responded to your other post, but we work closely with both companies and can help you out.

Feel free to text me at 213 394 2886.

-Josh

 

I have the Ark Grip, personally I wouldn't have chosen any other exhaust, everyone has their preferences though.

I like the way it sounds at idle, under load it sounds absolutely fantastic, and at highway speeds there is very little drone. There is a more noticeable drone at between roughly 1800-2300 but then completely dissipates. No matter which option you go to, there will undoubtedly be a drone though so don't let that discourage you. As well, the Ark had zero fitment issues.

- Shane

 

The Ark sounds way better, wish it was in stock!