Been through this with my current car.
The factory airbox is more than capable at your power level plus you wont get the heat soak factor like you would with the K&N. Just buy a high flow panel filter and chuck it in.
I would save the $350 on the intake and put it towards your tune or fuel pump.
With the fuel pump, you are future proofing your car and like what Munkvy said, it will allow the tuner to extract more power.
While you're at it get a set of 1 step colder plugs fitted too.