diverter valve

[nbudwig]

Hi i have a 2002 s3 bam engine with a mtm remap and hyperboost diverter valve i have just done the wak box mod and noticed on light throotle you get a little whoosh sound i know this is normal. But under hard acceleration change gear at around 5.5k revs i get quite a loud dump almost like a vta dump valve this isn't normal is it?.
Thanks

 

[DJ_Troopa]

Yup that's normal mate. It's like having an induction kit which sucks in alot more air. Was it easy to do the Wak Box mod?

 

[nbudwig]

Yes easy to do mate sounds nice and looks std.
Thanks for the reply