K&N Performance High-Flow Engine Air Filter: Washable, Multi-Layer Protection, Engineered to Boost Horsepower, 33-2304 price history and forecast - K&N 33-2304
K&N Performance High-Flow Engine Air Filter: Washable, Multi-Layer Protection, Engineered to Boost Horsepower, 33-2304

K&N Performance High-Flow Engine Air Filter: Washable, Multi-Layer Protection, Engineered to Boost Horsepower, 33-2304

Brand:
K&N
Model Number:
33-2304
UPC:
024844111562
EAN:
0024844111562
ASIN:
B000COC0GQ
Walmart SKU:
34814098

Third-Party Seller Summary

Third-Party Seller Price History Summary
Price Type Price Date
Highest Price
$73.68
Lowest Price
$45.59
Most Recent Price
$45.59
Average Price
$51.93
First Tracked
Last Update

Walmart.com Summary

No price history available for Walmart.com

Price Analysis

Price history data is not available for this product at the moment.

Current Trend: No Walmart.com pricing data available for analysis.

Customer Insights: Rated 4.5/5 from 99 reviews.

Customer Reviews

99 reviews

Customer Reviews

4.5
Based on 99 reviews
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Showing 10 of 99 reviews
Gary December 7, 2025

This is worth every penny. I would recommend this for any car. The horsepower increase is quite noticeable as well.

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Super Easy

DJ July 19, 2022

Don't listen to my previous review. Filter fit right in once realizing the pleats don't face the same way as the OEM filter. Grabbed some food and rotated the filter 90 degrees and wham, blam chicken & spam, she fit right in. Don't recommend changing on an empty stomach.

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It *FITS* (Forester/Legacy/Outback 2008+)

Ryan May 5, 2026

Yes, the filter is larger than a cheap, paper filter. No, you do not need to *bend* anything. You need to open the filter housing (airbox) appropriately which requires not much more effort (GASP! More WORK! With TOOLS!!!). Several ways to do this. Easiest is loosening the circle clamp downstream of the airbox. This provides enough play in the joint to open the airbox top ~2.5". Also possible to loosen/remove the retention bolt holding the entire airbox assy to the firewall. Don't seek quality parts if you haven't the capacity to use them properly. Don't berate a quality part out of stupidity and/or immaturity. Mind you, one cannot be stupid without being intelligent while one can be immature and quite aged.

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Great Addition to Upgrades

Subi Sue March 31, 2025

My son and I could tell the increase in the engines throttle response, and an increase in power. It is not huge as one would expect with just an air filter change from OEM, but it does have a noticeable improvement in power. I'm guessing but I estimate maybe 5 Hp increase.

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Best Air Filter!

bgabe October 22, 2016

This air filter improves my gas mileage and is cleanable! Will last forever!

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it's ok

Gus March 27, 2026

I don't like how it was packaged and I didn't like how the boxes sticker was ripped.

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Not Exact Fit

DJ July 19, 2022

Filter doesn't drop right in like OEM filter. Edges need to be trimmed or else take your filter box out and install filter. Not simple at all!

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Do not daily drive with this filter

Old boy April 28, 2025

I hear great things about k&n. But this filter is not one of their great achievements. It's let in an insane amount of dust into my engine. I've included an image of the inside of the air box where the air flows out of the filter and into the engine. It's full of dust. Had to use simple green to get the greasy dust out and the revealed the extent of the dust. This product is good for one thing only and that's track days which nobody does exclusively in this car except for a handful of people I know and they wouldn't touch this filter with a long stick.

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Outback or Legacy. DO NOT BUY

Martin March 15, 2026

Filter does not fit properly. Like others have said, the filter is too big and doesn't fit unless it is forced in and this will bend the pleats and leave a gap where unfiltered air can get into engine.

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This part does not fit a 2017 Subaru Outback 3.6 r.

John C. October 7, 2025

As stated in the headline, it does not fit. Slightly too big to latch. Air filter is the problem as other air filters fit as described.

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Price History

Historical price data graph for K&N Performance High-Flow Engine Air Filter: Washable, Multi-Layer Protection, Engineered to Boost Horsepower, 33-2304

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

0 records

No Walmart.com pricing data available for analysis.

No Walmart price history available in the past 90 days

Third-Party Seller Pricing

13 records

Third-Party Sellers prices have ranged from $45.59 (Jun 6) to $56.99 (May 12) over the past 90 days. Current price is close to the 90-day average of $48.22.

Third-party seller price history for K&N Performance High-Flow Engine Air Filter: Washable, Multi-Layer Protection, Engineered to Boost Horsepower, 33-2304 showing recent price changes
Date Price Change % Change
$45.59 $+0.00 +0.0%
$45.59 $+0.00 +0.0%
$45.59 $-11.40 -20.0%
$56.99 $+0.00 +0.0%
$56.99 $+0.00 +0.0%
$56.99 $+11.40 +25.0%
$45.59 $+0.00 +0.0%
$45.59 $+0.00 +0.0%
$45.59 $+0.00 +0.0%
$45.59 $+0.00 +0.0%
$45.59 $+0.00 +0.0%
$45.59 $+0.00 +0.0%
$45.59

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