Really? It suppose to allow more air flow and increase HP.
Complete and utter "Snake Oil".
The factory airbox supports air flow in excess of what the engine requires. Unless you are heavily modifying the vehicle (think bigger turbos, injectors, and a new ECU) to a point that the factory airbox became a restriction, then you shouldn't even think about swapping the intake.
Until you surpass the capacity of the stock intake system, you don't get any performance benefit from changing parts. It's a guarantee. In fact, if the new intake is more "open" then you risk making LESS power, as sucking in hot air from the engine bay would reduce power.
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