Micron air filter to block pollen and dust. It also has a charcoal filter to stop odors from entering the car
Pros: blocks pollen and dust
Cons: stops odors
Owner reviews for air filter
Manufacturers
Comparisons
on my turbo it revs a little faster.
Pros: revs a little faster
I dropped one in and got better gas mileage, noticable power increase (slight), and a badass sound.
Pros: better gas mileage, slight power increase, badass sound
I've used it in a few of my cars, and have noticed a very slight (~1-2mpg) increase in mileage. Power, eh, if there's any I can't feel it...
Pros: slight mileage increase
Cons: no noticeable power gain
I had installed a K&N air filter and noticed a good increase in power and fuel economy.
Pros: good power increase, better fuel economy
Vehicle:
Volkswagen Jetta
K&N's work great, just don't over oil them. I've been running them for years on all my cars. No problem with the Touareg either in 10K miles.
Pros: work great, no problems
Vehicle:
Volkswagen Touareg
Mileage: 16093 km
The only thing im using is a KN Drop-In Filter and that's it.
Vehicle:
Volkswagen
basically the dirtier a paper filter gets the less it flows...not true for K&N
Pros: flow does not decrease
Vehicle:
Volkswagen Jetta
I have had a K&N in my 1999 Passat for over 20,000 miles. No CEL's or any other problems. I didn't notice any siginificant performance gains, possibly a 1 mpg increase in gas mileage. To be safe, I haven't put a K&N in my 2001.
Pros: no CELs, no problems, slight gas mileage increase
Cons: no significant performance gains, potential incompatibility with newer models
Vehicle:
Volkswagen Passat
Mileage: 20000 km
I had a K & N put in my 2000 Passat and same thing happened to me. Turned off car and next time I started it, I got the check engine light.
Cons: check engine light
Vehicle:
Volkswagen Passat
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