Customer Reviews

K&N 33-2125 High Performance Replacement Air Filter

5 star:		(9)
4 star:		(0)
3 star:		(2)
2 star:		(0)
1 star:		(1)

 

 

All i can say is i have a 2003 vw passat that would on any given day range from 18mpg in town and 24mpg highway,but with the adding of this filter it now does 25mpg city and 31 highway and also more hp. WELL WORTH THE MONEY.....

This is the best possible filter that doesn't effect the warrenty.
It improves performance and gas mileage, and never needs to be changed. It is well worth the money.

Purchased this product because of K&N's reputation for quality and longevity. Installed in my vehicle and notices a difference in acceleration. I hope it last for 50,000 miles when cleaning is required.

Great buy! Much cheaper than anyone else i could find. Installation took 5-10 minutes. I dont notice any change in performance yet. The part fit great. Thanks Amazon.

I know K&N has a very good reputation and there cold air system did increase the hp greatly on my 99' F-150. But, there always seems to be a fit issue. For my truck their engineering documentation that was sent with the cold air kit did not completely jive with my truck. So, I had to add lib a bit at times. For my S4 the fit was less than perfect. It just didn't fit in the stock air box the same as the Mann brand filter that I had been using. But, I am looking forward to not having to buy anymore filters. They are very easy to clean.

K&N the best, there is not big changes in sound of the engine, but the more power of the engine and the less spending is noticeable

Picked this up for my Audi A4 after going stage 2 chipped, working out well with a little more sound from the turbo, better mileage, and makes the car a little more powerful. Worth the buy.

superb!! it was 19MPG, after I installed this filter now it's 23MPG!!! vw passat v6!! Great deal!! never will change this filter to OEM

Product works and does seem much more durable than the cloth air filters but do be careful. Amazon's fit guide isn't necessarily the most accurate, go to K&N's website to make sure you get the exact model. I ordered this one and it was too small but Amazon did a great job and issued a refund accordingly. Not sure about the claims for better mileage and more hp once you install but it will definitely last longer than the stock air filters.

This filter took a few days to show me what it was worth, but since then it is obvious that the engine is breathing better and I feel like there is more power. I have not yet decided on the mileage - it really looks like mileage decreased just a little bit- about 1 mpg. But I am not really sure, since it's only been a few weeks. Might be a wash. Great product I am very happy with it. Easy to install.