Rattle/tingy noise on Back Box

[Geddes]

As above on my SS Magnex exhaust cat back, it's defo on the back box. It only makes the noise when at normal temperature and lifting off the gas.

took it to national tyres all they did was took abit off the pressure on the exhaust by putting some rubber pipe in the back box hanger bracket

Any help?

 

[Geddes]

Was passing so i popped into a Tyre Spot they took it on the ramps and had a look, the lad suggested sounds like there's a foreign object rattling about inside. He suggested taking the back box off and try and shake it out, not a guarantee though

 

[Gavin.]

Baffles loose?