Trouble with a bassani catted x

[SoCalStang]

X-mas came and was I ever happier, I got a bassani ss catted x. I finished installing it a couple of days ago and ever since then I get a weird rattling noise at about 2500 rpm. I double checked the bolts and everything is tight. Has anyone ever had issues like this? It's in a 2003 GT.

Sorry for the doble post, but I didn't know where to get advice.

 

[WHITE2000GT]

X-mas came and was I ever happier, I got a bassani ss catted x. I finished installing it a couple of days ago and ever since then I get a weird rattling noise at about 2500 rpm. I double checked the bolts and everything is tight. Has anyone ever had issues like this? It's in a 2003 GT.

Sorry for the doble post, but I didn't know where to get advice.

where is the sound coming from? is the pipe brand new or is it used? my bassani started rattling like that, come to find out, one of the cats internals somehow came loose and started rattling. hope this helps