I think you misunderstand. I wasn't questioning if you knew what blow off means. I was pointing out that a recirc fitting on a BOV isn't going to sound the same or as loud as a horn on the same BOV.... same device completely different sound and exhaust rate. I was trying to make sure you knew that you cannot judge whether it's working or not merely based on sound.
There is no way for anyone to know if it's routed correctly from just that one picture. The reference/trigger needs to be plumbed to a vacuum port which is after the throttle body for proper operation. If it doesn't open then the problem lies elsewhere.
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