Most of these 'cone' filters (or whatever shape) can sound good, but unless they are encased in a 'box' of sorts, will suck in hot engine air. This is never good for performance. So it depends what you really want.
Many people - including myself, though mine is an 8V - drill large holes into the factory air box; I drilled about 12x 12mm diameter holes in the bottom. This improves flow, and creates that growly induction noise that cone filters provide. Mine sounds great. I use a K&N panel filter, but you could use any other drop-in replacement filter (BMC, Pipercross, etc).
So it's another option for you: higher flow panel filter + holes in factory air box.