Exhaust rumble?

[Alexiooo]

hey guys, i did a search for answers but couldnt find one...

the standard exhaust on my 172 cup has suddenly started rumbling when decelerating from 3000rpm to 2000rpm... its not blowing as the backbox is only 10mths old, and the bracket holding it on was fitted at the same time, it was dark when i got home this evening so couldnt get a decent look underneath... anyone had the same problem or any idea what it is?

 

[Don]

Is it the exhaust heatshield? There is a guide on here...but you need to pay £12 to view it. put hand underneath car when its stationary and rattling, the washers where the heatshield sits works it way through....10 minutes and bigger washers covers it (if that is the problem)

 

[Alexiooo]

it doesnt sound like a heatshield, yeh, my membership as run out, i saw the guide before hand tho, it sounds like a deeper rumble than the exhaust hitting the tin-like shielding, i'll take a look... is there another bracket towards the middle of the exhaust that might come loose?

 

[campcrystallake13]

I'd be interested in this also mines makes a noise around 2000 revs.

 

[Alexiooo]

Turns out this was the rear bracket had infant broken. Common problem which I'm aware of nowadays!