I recommend K&N. Some say it helps the car feel sportier (not really that noticeable imo), but you can buy the cleaning kit (about $20) and reuse the filter. It’ll help you stay on top of maintenance since it’s a lot easier to clean it 2-3 times a year as opposed to buying a brand new one 2-3 times a year. You can clean the filters so many times with the cleaning kit too.
I bought the washable K&N’s now I just wash em when they look dirty
I bought two K&N filters so I don’t have to wait for it to dry I believe the part# is VF2033 I don’t remember what I paid for the them at the time. $40ish bucks but I don’t have to buy another one for a long time
I put one in probably 7k miles ago, no issues thus far. I didn't do a whole cold air intake, just the box filter replacement.
I put one in, about 4k miles ago. Just needed a new filter figured why not. Helps with some of the hesitation the cars have, no issues.
A great aftermarket filter like a K an N reusable filter can be great especially if you plan on keeping the car forever. You buy a cleaning and oiling kit. The other option is to buy a good quality aftermarket disposable one.
I've run them on basically everything I've owned for the past 15 years. People hate them because they claim the oil fouls the MAF and that they let in more junk. I've never had a MAF fail and I've had two F-150s go over 200,000 miles on them with their original motors. My current F-150 has 239,000 and counting, no problems with it. Why buy them? I do it because they're re-usable. I think the K&N for my current F-150 was $45 when I got it, and the Motorcraft filters are $10-12. So over time it will save money, kind of, if you don't mind the work. Would I do it again? Nah. I'm done with them because it *is* kind of a pain in the butt to clean and oil them all the time. On two vehicles they added a bit of pleasing intake noise but again, eh. No big deal. I wouldn't waste the money. Just get the manufacturer filter and swap it out every year.
The OE filters are fantastic at efficiency in filtration over service life as they will filter smaller particles consistently. But they will clog rapidly and reduce overall flow to the point of producing a compromise in fueling. This shows up in the combustion efficiency and nitration numbers of a comprehensive oil analysis. I tend to stay away from the high flow "performance" filters and just change my OEs more often.
All the MAF stuff aside, I've never been a fan. I've seen people with diesel trucks running that have collapsed and sucked into the intake tube. Granted our trucks don't have turbos, but that alone makes me question their quality. Plus I fear a more "open" filter would allow more particles. I'll keep my stock pleated filter.
I used to run k&n years ago until I had a before and after used oil analysis done and silicates went up about 30%.
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