If you prefer the vent-to-atmosphere blow-off sound without flutter, now there is another option for you. Still better than the other options on the market; it goes on in seconds, keeps the recirculation hose secure without the need for zip ties or tape, and blends right in so that it is nearly invisible.

Amazon
https://www.amazon.com/dp/B0CTTFRF2F?...

Direct
https://shop.your3rdway.com/Ford-F150...

If you are looking for that flutter sound, the original version just got better. I'm now including these vent plugs and an easy insertion tool (at no additional cost). I recognize that there are a wide array of variables, and adding some tuneability will make this great product even better. You can plug any number of holes to find the right balance for you. One customer running higher boost pressures (up to 25psi) on a 2.5L Ecoboost opted to install all four plugs and was happy with the result. They go in easy and are very secure once inserted.

https://shop.your3rdway.com/Ford-F150...