If it helps the engine breathe better it's a good idea. No downsides other than listening to the people here who whine about anyone using anything aftermarket whatsoever.
if the stock intake already flows more air than the engine can ingest, what value does such an aftermarket gizmo add? So upgrade where it adds value, but don't spend money just because you think it adds value... unless it really does. Now if you just want the look and are willing to spend cash for little or no benefit, so be it.