Help, I have had this rattling in my exhaust/downpipe/turbo area for a while now and it seems to be getting progressively louder. It is starting to drive me crazy. I thought it was the heatshield that covered the exhaust manifold but it is securely attached. It sounds almost like it is in my downpipe. Maybe it is the waste gate rattling, does this make sense? It rattles when I let off of the gas or cost with the car in gear. This is extremely annoying since you do this a lot when in a parking lot and it makes my car sound like a piece of crap. I do have a n-tech downpipe and first noticed the sound after install almost two years ago, but it wasn't nearly as loud as it is now. Any suggestions are greatly appreciated. Thanks. Jason

 

Check the shield above your main cat. I had that happen to me and it was irritating the **** out of me, just used a metallic wrap around/clamp from the mazda dealership and fixed it.

-r0gu3

 

Get under there and check your heat shields.It's gotta be something very simple.