Okay guys, My car started making the rattling noise from the exhaust like many of you. Now i am at 1200 miles and it suddenly stopped the noise. Now my car sounds soo loud. I would say it sounds like an srt4. It is so weir. I feel it pulls so hard on 2nd now. I donu what this was. But at first it was making the rattling noise then it stopped and now its reaaaly loud. Like no rattling, in the same rpm it used to rattle now it just realy nice and loud like a magnaflow catback. NO RICE THO!

 

The rattling (sounded like a loose heat sheild) is a broken baffle in the muffler. Mine also just suddenly stopped (about 1000 miles also). I think it is just broken away enough to stop rattling. Oh and mine also sounds loud under 4000 rpm but quiets down after that.
I like the sound but am still looking forward to getting it fixed next week.

 

u think that freed up some air or made turbulence in the exhaust losing hp.

 

I am not sure, mine seem to have a little less,but maybe I am just going easier on it because I am not sure if it is going to get worse if it breaks more.

 

mine has the rattling still, but its very minor.... but i only have 700 miles....so ill wait a couple hundred more miles and see what happends....

 

yeah at first i hated the rattling noise. It was the hardest at 700 miles though. Now i kinda like that sporty sound. I think its a whole in the system though. Lol