Not sure which 2003 Porsche 911 Air Intake Systems are right for you? We have over 20796 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:
"A somewhat lengthy installation process but the directions were clear and easy to understand. Kudos to Ron for helping to answer questions online. The car was always very responsive so hard to say if there is a truly noticeable increase. However, the degree to which the engine breathes easier is definitely noticeable and appears to make the car more driveable at more sedate speeds. Somewhere around 5000 rpm over 40 mph or so the new intake sound kicks in and it simply wails. That is when the filter modification really comes into its own and the two hours bent over the back end of the car becomes worth the effort. Again, I'm not sure if the car is actually getting to higher speeds faster but it is getting there with less effort. I would suspect it may be a couple tenths faster. Again, appreciate the help from Ron, filter was delivered fast (about 3 days). I will definitely use Auto Everything again." —Richard P from Fredericksburg, VA bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2003 Porsche 911, 3.6L 6-cyl. engine, non-turbo.