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K&N Air Filters Part #33-2356 Customer Reviews
44 Customer Reviews
Reviewed by Mitchell K (DEER PARK, WI) Reviewed for a 2007 Cadillac STS — Dec 28, 2014 8:36 PM
High quailty, environment friendly product. If your engine is feeling groggy and sick, this is just what the doctor ordered. Quit wasting money on worthless paper filters, and do yourself, and your vehicle, a favor by going with K&N.
Reviewed by Jonathan S (Oklahoma City, OK) Reviewed for a 2008 Cadillac STS — Mar 30, 2014 7:33 PM
I have always used K&N air filters over the OEM filters. They are great products. I was pleasantly surprised by the low cost for my car.
Reviewed by robin b (Garden Grove, CA) Reviewed for a 2009 Cadillac STS — Nov 19, 2013 12:17 PM
Love this product i have them on all my vehicles and my off road toys. I like that they only need cleaned every 50,000 miles under normal conditions also the added performance is nice and that they filter the really well
Reviewed by Brett W (Waterloo, IL) Reviewed for a 2004 Ford Mustang — Oct 18, 2013 6:30 AM
Autoanything has great prices on K&N Filters and they get you your order really fast. I am definitely checking with them anytime that I need something for any of my cars.
Reviewed by Barry C (Tyler, TX) Reviewed for a 2016 Ford F-250 — Sep 20, 2013 4:35 AM
So far I am noticing no real appreciable differences. Gas mileage has not improved. No noticeable bump in performance. But I do believe the engine is breathing better. I found no credibility to some of the reports that said cabin noise increased.
Reviewed by DOUG D (WESTMINSTER, CA) — Jul 31, 2013 7:42 AM
Excellent quality filter, a much better filter than the stock filter I replaced, and it only cost about $3 more than the Cadillac dealer wanted. Too new to see if gas mileage has improved, but it does run better.
Reviewed by Hugh S (MELBOURNE BEACH, FL) Reviewed for a 2007 Cadillac STS — May 24, 2013 10:17 AM
Always wanted to try one of these. Seems to have improved power and look forward to a long trip next week and check for gas mileage improvement. A minimal gas mileage improvement will pay for the unit!
Reviewed by Robert F (Kansas City, MO) Reviewed for a 2005 Cadillac STS — Feb 09, 2012 7:11 PM
Filter arrived pre-oiled and ready to install. The quality of the filter is noticeably better than the disposable alternatives. FYI - The way the filter sits in the filter box for the STS is a little concerning, since the rubber edge of the filter is exposed on the bottom, but not the top. I removed the box from the car to do the replacement. It would be hard to get the filter in correctly, otherwise.
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