Has anyone had a problem with there Greddy RS BOV whistling. I tried to ajust the nut and it still does it i dont want to tighten it to much. It opens just enough to whisle. [:'(] That is under low or no boost when letting off the gas.
The RS isnt as loud as i would have liked it to be. Maybe i have a defective one.
Can anyone give me any info?

Thanks

 

yep its suppost to flutter when your not boosting and you let off the gas or go from light boost to no gas.

 

we all get that with the rs. it's not a loud bov, it's just the nature of it.

 

if you want a whistle, get the type S