yes the 2k4 have an internal (filter only, non-canister) filter. Now if your looking on at the engine from the center of the car, look down to your right should be right next to the exhaust manifold, its a black plastic canister. the top of it shoiuld have what looks like a bolt mold. its about a 30/32mm socket size. screw that off, and the filter is inside of there. happy hunting, post back for any further questions.