[erm324]

OK, so after trying to describe the sound to many people I finally have a pretty good video. Tell me what you guys think (and no, its not wastegate rattle because you cant even hear it from the front of the car and, yeah, its just not). I have UR CATTED downpipes, Meistershaft section 1&2 c@tless pipes, and a dinan exhaust. What do you guys think can be causing this problem, an exhaust leak possibly?

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PS: If I push the exhaust upwards with my foot the sound goes away....

[lyndon_h]

im no expert on this, but the fact that the sound goes away when you push the exhaust up sounds like there is a leak in the exhaust to me.

[Malaka1]

Check to see if the exhaust is touching somewhere, kinda sounds like metal on metal..

[UAP1]

It will be interesting to see what you find out. I am having a similiar issue.

[335xiRT1]

Check the V-clamps that hold the DP to the turbo. They get loose sometimes

[mazdaspeed6]

Originally Posted by Malaka1

Check to see if the exhaust is touching somewhere, kinda sounds like metal on metal..

+1

[Thumperx]

It may sound like a exhaust leak or hole somewhere in the exhaust line. Take the car to a muffler shop, put it on the rack, and have the guy track down exactly where it is. He may use a stethoscope to find the leak.

Also, the hole or leak is may not be visiable from underneath; rather, in area where it can not be seen. This is from your statement when you push it "upwards" and the noise goes it away.

[erm324]

Yep, thanks for the feedback guys. I will be bringing it to a shop soon to get it checked out - nothing major (it doesn't tick all the time, only if I pull over after the cars gotten a hard beating does it tick). Ill let you guys know....

[jadeddjay]

check the hanger behind the muffler too

[UAP1]

Originally Posted by erm324

Yep, thanks for the feedback guys. I will be bringing it to a shop soon to get it checked out - nothing major (it doesn't tick all the time, only if I pull over after the cars gotten a hard beating does it tick). Ill let you guys know....

Keep us posted bro.

Thanks for posting the issue and the video.

I am having the exact same issue. After I drive it hard it gets loud. No other time does it seem to make rattling noises.

[MkLV_M3]

My exhaust use to make a similar noise, it was the aftermarket exhaust coming in contact with the stock chassis brace, I used washers to provide enough space to prevent the rattling.