K&N High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2007-2020 Infiniti/Nissan: G35, G37, Q40, Q60, QX50, 350Z, 370Z, Fairlady, Skyline, 33-2399

I have had K&N in every car that I have owned. The best air cleaner out there. I have always liked how you can clean them let dry,re-oil and install back into the car. the cleaning kit is not too bad on price and you can find it at any auto store. Hold any air cleaner up to a light and look through it next to a K&N and you will see the difference! Its plan as day. Very easy to install on my new to me 2010 Infiniti g37 sedan. I had them both installed with warning stickers in less then 5 min. Worth the up front cost because i will never have to buy another air filter for this car again. My last daily driver has 250,000 miles on it. That car I,m passing down to my son. It still has the K&N air filter on it that I installed when it was new.That K&N air filter looks like new after I cleaned it,re-oiled and installed. I'm 42 now and will have this product in every car that I every own until I'm gone.

had it for a week and i already have improved gas mileage and the engine is breathing better. keep in mind this only includes one filter so you’d have to order another one for the VQ37VHR. perfect oem fitment and amazing quality.

Better then z1 filters I had in before.

Makes it sound a little louder, no difference for gas mileage as far as i can tell but its nice not having to swap it out every year

Wrong part sent (too large), in a box that was labeled with the correct part number. Part clearly was not brand new. Originally I had ordered the same part straight from K&N, but accidentally only ordered 1. After realizing its carried on Amazon, I bought the required 2nd filter here, to take advantage of prime 2 day shipping, as K&N charge a marginal fee for speedier than standard shipping (5 day ground was free, but I was impatient and opted for 2 day air). Both shipments arrived on the same day. K&N's package had stickers and documentation within, and the filter was inside of a sealed plastic bag. The package from Amazon had nothing but the filter, inside of a torn open bag. The box and filter were much larger than what K&N sent. The torn open bag had some type of residue within. Interestingly enough the box from Amazon did have a sticker on it, labeled with the correct part number. Id suggest buying from K&N direct or your local auto parts store to ensure an authentic and complete product. AutoZone and Advanced Auto Parts both carry this item in my area, at the same price as Amazon, with free (no membership required) next day shipping. I drove to my local AAP and picked one up, again at the same price as Amazon/K&N's website. AAPs filter was identical to what I received from K&N. Very disappointed with Amazon on this one. As far as the filter goes, it's great. Installed them and ran the vehicle for about an hour on the highway. Nice fit, somewhat tighter than the stock filters that were in there. I noticed a slight difference in tone coming from the engine bay with the new filters installed, but it was a pleasant one. The vehicle ran at normal operating temp. I wasnt looking for performance gains, just liked the idea of a lifetime, washable filter but I did notice perkier acceleration at the low/mid range. Very happy with the filters, worth the additional up front cost imo. Hopefully these will be the last pair of engine air filters I buy for this vehicle!

Exelente

I just received the K&N air filters. Installed less than 5 mins on my 2013 G37 IPL COUPE and I must say I am truly impressed by just the diffrence it made in the responce to the throttle. The bit of sluggish I felt is COMPLETELY GONE. It drives like it looks. Will be installing complete Air intake in the future but just the filters will definitely do for now. Amazing K&N.

Installed K&N Filters yesterday. No problems with MAF Sensor at all. I would definitely recommend this filter because the cheap paper filters for the 2007 G35 (with dual intakes) are hard to find ---- and a lot more expensive (probably because they don't sell a lot of them). Why not upgrade to a non-disposable, much better quality filter for a little more? I will say the fit is very tight. But I'd rather have that than a loose filter (bought my car used and the paper filter actually had a small amount of blow-by, which is never a good thing). P.S. I haven't noticed any difference in sound or power.

Qualité kn impeccable

Got those for a 2015 370z car is stock as if new from mechanics point of view. After 6 to 8 weeks the car turned to have a huge acceleration lag and I believe the MAF’s need to be either cleaned or replaced. I would recommend to think 20 times before you jump into flushing OEM’s parts into good marketing after market ones.. Not happy with the results at all

QX50 - requires 2 air filters so beware :-) but glad i put them - the car does feel (good) different....

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No real difference in induction noise on the 370Z. However as these last the lifetime of my car I will save not putting cheap over priced ones at service intervals. Plus added bonus of engine bay bling K&N stickers. =)