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Discussion Starter #1
Hi all

So I have a turbosmart plumb back BOV on my fiesta St 2014. But I absolutely hate the whooosh noises it makes. I thought plumb backs remove this noise, how do I get rid of the obnoxious whoosh noise?

I've had other turbos (GTI) and they never had a lame whoosh noise.
 

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Hi all

So I have a turbosmart plumb back BOV on my fiesta St 2014. But I absolutely hate the whooosh noises it makes. I thought plumb backs remove this noise, how do I get rid of the obnoxious whoosh noise?

I've had other turbos (GTI) and they never had a lame whoosh noise.
You want a recirculating valve--one that doesn't vent to atmosphere (to get rid of the sound).
 

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Discussion Starter #3
You want a recirculating valve--one that doesn't vent to atmosphere (to get rid of the sound).
This is the one I have https://wolfracingproducts.com.au/turbosmart-kompact-shortie-plumb-back-ford-fiesta-st-1-6l-ecoboost.html

"The Plumb Back is a fully recirculating BOV, so its operation is quiet and won't draw any unwanted attention. It seamlessly integrates with the vehicle's standard mapping, so it's perfect for the driver seeking big performance from their ST while keeping under the radar."

This is what I do not understand
 
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