Here we go again....
A K&N drop in filter will net you better power than an FIPK unless you make some modifications. Why? The drop in uses the stock air box which pull cooler air in from out side of the engine compartment. The FIPK pulls hot air in from with in the engine compartment. If you go with a conical filter either build a box around it or extend the piping so it places the air filter under the passenger headlight.