Maraca, dry lentils in a baloon sound

[Dblock]

I have a japspeed k2. Now its been fine but its started making a shaking maraca-ish noise. The noise is only between 2-3.5k and the k2 still sounds sweet higher than that.

 

Does anyone know what it is? Tailpipes? Baffles? or something else? The sound wouldnt even record on a video so its hard to describe.

 

Thanks

 

[Zugara]

Baffles I recon.....seen any strange spots or flecks on your rear bumper above the tail pipes if you have that's the wadding, or a baffle may have cracked and that rpm is right frequency to set off the noise.

 

Or could be a loose hanger!

[Dblock]

Baffles I recon.....seen any strange spots or flecks on your rear bumper above the tail pipes if you have that's the wadding, or a baffle may have cracked and that rpm is right frequency to set off the noise.

 

Or could be a loose hanger!

 

Ahh so if it is a baffle it will start spitting it out? Will check for them.

[Zugara]

Baffles I recon.....seen any strange spots or flecks on your rear bumper above the tail pipes if you have that's the wadding, or a baffle may have cracked and that rpm is right frequency to set off the noise.

 

Or could be a loose hanger!

 

Ahh so if it is a baffle it will start spitting it out? Will check for them.

You should see whitish flecks on the rear bumper and on tail pipes, I assume that the negative pressure, vacuum, caused when the car is going forward, sucks the deposits onto the back of the car, Glenet had this issue with his Miltek last year.

[Dblock]

There is nothing like that above or around the exhaust. Im sure I read that it could be a lose tail pipe? I try to get them welded up maybe.