becuz its pretty much useless to take it off, you can hear it clearly that something is broken in it when u just turn the car OFF.. and hit on the rez... u can hear somthing in there is broken. it doesnt sound like a broken rock or somthing completly ripd off.. it sounds like somthing is broken inside it and is kinda sticking up and vibrating...

 

hi, i am curious, did you ever find out what it is? I am looking to purchase this exhaust and I hope this is not a common problem.

 

any aftermarket exhaust that the company says is an easy bolt on is a lie every system requires some adjustment no matter what it sounds like the vibration is the pipe or a hanger hitting against something under there

 

oh crap i just ordered mine yesterday and now i'm all paranoid.