K&N High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2007-2021 Lexus/Toyota: LX570, Land Cruiser, Sequoia, Tundra, 33-2387

*****Update dec 2017: No issues at all, still great mileage! Saving me lots of money...even more whenl gas goes to $8.00 a gallon! Excellent! Perfect fit and seal around the lip of the filter. I am comparing performance to a brand new stock Toyota dealer supplied filter. Wasn't expecting much. Was I surprised & this filter delivered impressive results. 1. No low /high speed noise or whine on my 4.6L v8. In fact, just a quiet, mellow rumble that really sounds great. Nothing radical, just sounds like it should for a big, powerful engine running well. 2. Situation where I notice the biggest difference is in town, low speed, starting from stops, and especially when the engine is still cold. It's like the engine was driving with it's nose stopped up but now, the sound is clear and flowing. By that I mean when engine is cold or starting from a stop, any hesitation is gone. It breaths right through it. Engine does not sound stopped up and interestingly, the transmission shifts more smoothly, too. Not sure how the air filter plays into that but smarter tranny shifting is a definite result and improvement e.g. it tends to release /shift into a lower gear sooner, which increases mileage in and of itself. MY dash MPG gauge reflects the difference I am hearing in sound and shifting leads to higher MPG. 3. I have an instantaneous and average MPG gauge and I can see in all my driving situations (no trailer or big load) getting 2-3 MPG more. That's a 10-15% increase. I am impressed. But with my MPG gauge, I have a highly trained foot with no lead. 4. Highway cruising under 57mph is 24mpg flat highways; over 60 & MPG drops noticeably. Combined mileage 18-21 MPG on this big Tundra. Maintenance: Says it's good for 50k miles. You don't have to clean & re-oil until then. I bot their kit for 10$ that comes with a cleaner spray, oil spray, and clear instructions. I would sugg using the SPRAY oil to recharge the filter and not the oil in a spout bottle where you have to drip it onto all the filter folds. A Spray is MUCH quicker and more uniform. So it comes either way as a spray or in a drip bottle & price is about the same so not a factor. Overall I am really pleased. At a price of 40$ incl shipping I cannot think of a negative. After ordering my filter I noticed the price went up 30% for no apparent reason. The 4.6 Tundra just rolls easier,... and it's like a rag was taken out of it's nose with the K&N 33-2387 filter and the engine can finally breathe!

Pros: Excellent filter with excellent airflow to your engine. Will last longer than the vehicle with routine cleaning and spray oil, so saves money in the long haul. Cons: Not a "Con" for this filter.. a "Con" for Toyota: Installing this filter exposes a flaw with the Toyota 5.7 Liter engine, where a very high pitch sound is generated by a metal mesh located behind the throttle body. The OEM filter masks this noise (likely becuase of its density and restricting airflow). To correct this, remove the two bolts holding the throttle body to the intake manafold (after first removing the air filter housing) and then use a pair of wire snips to clip out the wire mesh from the gasket behind the throttle body. Replace and high pitch noise goes away. (I installed a new stereo arround the same time as this filter and thought the noise was the radio... very high pitch and sounded like it was from the speakers inside the cabin... enough to drive someone crazy looking for it).

This filter is spectacular... The gas mileage is phenomenal...

2010, 5.7 SR5. It fit and functioned fine, does whistle though. But, I immediately put 1300 miles on with it and did noticed a significant change in the way the truck runs at high elevation, 8k+ ft above see level. The truck ran much more responsive and didnt seem so starved for air as before.

I own a 2012 Toyota Sequioa and it was time to change the filter. I figured why not have one of these like my performance cars had on back in the day. So installation was easy but then I noticed the infamous mesh everyone talks about on the top filter box. I have never seen this on a car and it seems to restrict even more airflow into the engine? Why was this done, mpg, epa stuff? Know knows but I 86 it into the trash. I have zero whistle or hardly any sound (except a little on WOT). That mesh can be removed carefully with a flathead screwdriver, carefully pop the plastic rivets off of the top of the filter housing. Good product overall and it fit like a glove! Drove a few miles at various speeds and throttle position. No whistle and the only sound I hear is the gulp/sucking when I rev the engine while parked.

I have heard of K&N for awhile and finally made bought one and the difference is night and day. It will fit the stock air box no problem. My truck has been modified so I have a cavern R muffler so performance may be different from stock exhaust. My truck gained some hp very time I get on the gas response has been smother and faster. This also improved my exhaust note. I also gained better gas milage in the city and on the highway. This is a reusable filter and there is a kit with instructions also a video on how to clean it. This should help save me some money and I love it. Worth a try and Definity will buy again

Works great, regret waiting so long to get it.

I had a K&N filter in my Toyota Tacoma and was so pleased with it, I purchased one for my 2010 Toyota Tundra. After I installed the filter on my Tundra, it makes a whistling noise (as stated in a lot reviews). The whistling noise occurs at certain times/acceleration...probably when the air intake is increased. I can hear the noise and detracts from my driving experience. I know the filter works in removing debris from the air, but the noise makes me give this filter 3 stars. If it didn't make noise, I would give it 5 stars.

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helped a bit.. I don't regret the purchase

ship real fast. received nice and good pckage. thanks

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