exhaust blowing at collector

[RS2MATRIX]

hi, my exhaust is blowing at the joints of the downpipes and silencer. would this be causinga popping noise at idle and a kinda mis-firing/splutter kinda sound and also a popping noise on the overrun.
if this has a good chance of being the cause, then what would be the best way to temporarily seal it. Whilst i save for eventually a new system?
____________________
Reiju RS2 Matrix
Kawasaki ZXR400

[steve32]

yea mine does that same so ive just used gum gum or what ever you call it until i can get a new system
____________________
suzuki GSX 600F katana .: ~my bike up for sale~ :.
CBT = Completed
DAS= Working on it - theory test = Passed