K&N only has a drop in and a short ram for the PZEV engines only. There is a sticky thread that gives all info.
Currently, there is not any CAIs for the 08s and 09s. All exhaust systems will fit that is for a 05-07 sedan. SVT rear disc conversions for the 05-07 will fit the 08 and 09 as well. All header types will fit if it is for a Duratec (non PZEV has two O2 bungs, I believe PZEV has three).