I'm confused, did a ton of research and everyone was saying ark is the best. So i spent 2 grand and got this exhaust linked below for my 16 is350, on startup you could hear that there is an exhaust, but it's very low volume otherwise, almost stock fsport exhaust sound. Could it be defective? Im trying to avoid taking it off and shipping it back and forth as it's heavy and a huge box

Part No. SM1502-2417G (Carbon Fiber)


This exhaust

 

Just like any new exhaust, i would let it break in. It will definitely deepen in sound.

IMO, Ark is definitely the best sounding with/without headers. I have Ark paired with PPE headers and sounds amazing.