S7 Exhaust Noise

[langley241]

So I decided some time ago for the x pipe and res delete to give the vehicle a noise it needed, whilst the noise on the whole is great, pops and bangs are extreme, there is a very annoying downside....

Below 2000 rpm at light throttle there is a hissing cracking noise,sounds like crows squawking on the passenger side rear, It was suggested that unplugging the valve control would stop this, but no luck.

 

Has anyone got any ideas what this is and how to stop it...??

 

Edited July 14, 2019 by langley241
typo