Starting a couple of weeks ago I noticed a low-toned rattle coming from the catalytic converter, but only at rpm below 1,000. I thought it was a loose connection but after tightening, clearly not. Plus, I can hear the noise if I hit the cat. converter w/ my hand. I haven't taken anything apart yet or called the Vishnu crew. Was wondering if anyone else has had/heard of similar issues w/ Vishnu exhaust components?

 

check to see how close it is to the heatshield. i bent my shield a touch and it went away. the hangers helped me too.

Tom

 

If it's the sig exhaust then sounds like you cat is upside down.

See if that helps

 

The cat being upside down is a serious problem so check it soon. It puts additional stress on the mounting bracket for the Center Differential bolt for the Downpipe which could cause it to rip away from the CD causing a nasty hole and exhaust leak.