strange exhaust noise since getting the yozza

[robbygraham]

Had a yozza on my car for the last month or so and i love the noise of it, just recently its been making a sucking type sound from under the car when I'm driving and revs get to about 3k, sounds like a supercharger or big induction noise, anyone know what this could be down to?

 

[robbygraham]

bump

 

[SBV116]

would think it is the cat fitting kit mate! Between the cat and manifold, they go weak and air pushes past, causes a whoosh / screech noise? Get a genuine renault one, not a cheap imatation, there pants!