https://my350z.com/forum/showthread....ht=kinetix+cat

 

big bummer. I have a rattle inside the driver side Kinetix cat. I haven't taken it off yet to see exactly what it is, but this sucks. Whenever I hit 4-5000 RPM, it sounds like something is messed up. Other than that, the sound is not that much different. The power? I think the throttle response is different at certain RPMs. If only this rattle was gone then I'd be happy.

 

I added Crawford HFCs to my Borla TD. The exhaust note got a little louder but not as much as I expected.