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Not all. I have a Quicksilver and it does have a valve which connects to the same vacuum lines.
 

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2020 R8 V10 Performance Spyder
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Premium Member
2020 R8 V10 Performance Spyder
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3,300 Posts
I’m between the valved velocity AP and valved quicksilver. Velocity AP offers options on the closed valved sound. I do like my peace and quiet sometimes.
With valves closed, the Quicksilver becomes very quiet. No different than stock when valves closed .
When open, it’s very loud and sounds incredible.
 
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