My friend want's the Whoosh sound in his TT

[Virdi]

Hi all,

Now I know for sure that whoosh type Dump Valves don't work well on the 1.8T engine (or at least that's what everyone keeps telling me)

...but how can you get the whoosh type sound then on this engine?

Blow off valve? How do these work?

Thanks

 

[Virdi]

Yah - This a 225 - How did he do it?