★★★★★ 5
excellent product
Size: 1.9" x 9.9" x 11.4"
easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air FilterSKU: E 0647 UPC: 024844366030 K&N E 0647 Replacement Air Filter for 2015 2020 Audi A4 2. 0L L4 K&N E 0647 is a washable reusable high flow drop in air filter for 2015 2020 Audi A4 equipped with 2. 0L L4 engine. Layered oiled cotton media improves airflow to deliver more horsepower and acceleration while trapping contaminants for engine protection. Direct fit into factory airbox with no modifications needed and backed by K&N No Hassle Lifetime Limited
Quick Dispatch:
Your K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter ships.
Need Help?
Questions about K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter in your area.
Get Shipping Estimates
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
K&N Replacement Round Air Filter for 13-14 Audi RS6/RS7 4.0L V8
55.19
K&N Replacement Round Straight Air Filter for 12-15 Ford Ranger
67.19
K&N 06 Corvette Z06 7.0L-V8 Drop In Air Filter
126.39
K&N Replacement Round Straight Air Filter for 14-15 Mercedes Benz A45/CLA45/GLA45 AMG 2.0L
68.99
MagnaFlow Conv GM 23456 23X6.5X4 2.25/2.25
165.50
K&N Replacement Air Filter FORD MUSTANG V8-4.6L, 1996-97
67.19
K&N Replacement Air Filter FORD CARS AND TRUCKS 1968-87
83.99
4.7 ★★★★★
Based on 1156 reviews
Sort
Product Reviews
★★★★★ 5
Great purchase!
Size: 1.9" x 9.9" x 11.4"
This has worked out quite well. I have had it since 2023 and have been cleaned thru about 6 maintenance schedules. It's been 2 yrs and it's in great shape. Worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
★★★★★ 4
Really filters the cabin air
Size: 1.9" x 9.9" x 11.4"
K&N filters are always a cut above. Can’t say the same for service/support after the sale.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
★★★★★ 5
quick and easy fit
Size: 1.9" x 9.9" x 11.4"
Instructions made it a very quick and easy fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
Nice air filter
Replaced my K&N filter with this KAX filter. Same performance and better mileage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2024
