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The KAX Engine Air Filter CA11305 is a precision-engineered replacement filter compatible with multiple BMW 3 and 4 Series models (2012-2018). Featuring advanced dual-layer plant fiber media, it delivers superior filtration without compromising airflow, enhancing engine protection and acceleration. Designed for quick, tool-free installation, this durable filter meets and exceeds OEM standards and comes with a 2-year warranty, making it the smart choice for performance-minded drivers.
| ASIN | B0CSYMK8KX |
| Best Sellers Rank | #1,084 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Air Filters |
| Brand | KAX |
| Brand Name | KAX |
| Customer Reviews | 4.8 out of 5 stars 2,607 Reviews |
| Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 06976893148829 |
| Included Components | CA11305 Engine Air Filter |
| Item Dimensions L x W x H | 8.92"L x 8.02"W x 1.62"H |
| Item Height | 1.62 inches |
| Item Type Name | Engine Air Filter |
| Manufacturer | KAX |
| Manufacturer Part Number | 5311EAF212DUS1_11 |
| Manufacturer Warranty Description | 2 years |
| Model Number | CA11305 |
| OEM Equivalent Part Number | CA11305 |
| OEM Part Number | CA11305 |
| Product Dimensions | 8.92"L x 8.02"W x 1.62"H |
| Product Grade | Replacement Part |
| Shape | Square |
| Unit Count | 1.0 Count |
T**I
Great alternative i would trust again
Bought 2, one each for nissan rogues. Fit perfectly. Without laboratory testing..... Feels like a solidly built product. Better price than the commercial/ standard products out there. Comparable to competitors in feel/ perceived quality. Had been over 2 months, cats are running superb. Forgot i have them. In other words, replace and forget about it..... until change time.
W**D
Good Quality, No Complaints
Great product and does exactly what it says. Fit perfectly and no issues with installation. Would buy again.
A**N
Seems like a good engine filter
Purchased the KAX Premium Engine Air Filter for my 2016 Ram 1500 Rebel with the 5.7L Hemi, and it fits perfectly—no complaints on fitment at all. Filters are filters, and this one feels solid and sturdy. Installation was quick and straightforward. I can’t comment on long-term reliability yet, but so far, everything looks good. If you’re looking for an easy drop-in replacement that fits without any issues, this is a solid choice. Would buy again based on first impression.
W**S
Ram air filter
Fitment was perfect. Looks just like a K&N filter.
O**N
So far so good
The KAX air filter gets the job done at a reasonable price. Installation was easy, and it fits my vehicle properly. I appreciate the focus on higher filtration efficiency and better air permeability — the engine seems to run smoothly with it installed. That said, the packaging feels a bit over-promotional. It claims high dust holding capacity and flame retardant protection, but it’s hard to verify how much of a difference that makes in daily driving. It doesn’t feel quite as premium as OEM filters, but for the cost, it’s a solid alternative.
J**A
Increase in mpg
Great filter that compares to OEM. Bought this one for my 2020 ram 5.7 and it even increased my mpg. Overalls it's a good buy for the price.
P**P
IT FITS, IT WORKS AND CHEAPER THAN WALLY WORLD...
Replaced Air Filter in 2023 Camry with this KAX Brand and it was an easy install, fit perfect and seems to be performing well... Have used the X4XZ and this KAX Air Filter and had no problems with either so now I just get the one with the best price when it is time to replace. I Change it every 6 months...
G**Z
Fits perfectly
Great product
Trustpilot
3 days ago
2 months ago