Not sure which 2004 Mercedes-Benz SL-Class Air Filters are right for you? We have over 14810 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"The engine sounds different and perhaps its just me but I notice more instant throttle power. The K&N filters were also a third as thick as the OEM, so more air is definitely getting in." —Andre N from Fairfield, CT bought a K&N Air Filters for a 2004 Mercedes-Benz SL-Class.