Sound coming from flexible pipe, 'nenas'

[Kagerosan]

Hello
Need some help from u guys my 'nenas' (exhaust part) produces noise. its like shaking/rattling when my car is idle or cruising at low rpm. please help me ... before this the exhaust works ok. i use satria neo cps

 

[DanzEterna]

u sure its from the nenas ah? could be suspect 1 of the exhaust bracket broke....
if its the nenas...cut it off & replace it with a SS pipe....

 

[Kagerosan]

solved! the o2 sensor is loose