Pay in installments of $52.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
For Your Every Summer RSVP, with Code: SUMMER15
Description
K&N BMW 2-3-4 Series N20 Engine Performance Air Intake SystemThe K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid
The K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid provides easy access to the filter when cleaning is required. This performance air box is relatively easy to install. The required tools are commonly available and it uses the previous air box space. These air box systems are built to last for the life of your vehicle and they're backed by K&N's No-Hassle Lifetime Limited Warranty. Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Check the K&N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.8 ★★★★★
Based on 12 reviews
Sort
Product Reviews
★★★★★ 4
Husband loves socks
Number of Items: 6, Color: Black (6-pairs), Size: Large
Socks are very comfortable and soft. He got rid of the other ones he had! Also, it was a great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2024
★★★★★ 5
Good product
Number of Items: 6, Color: Black (6-pairs), Size: Large
Good fit, item as advertised!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Great socks
Number of Items: 6, Color: Black (6-pairs), Size: Medium
I love these socks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Good socks
Number of Items: 6, Color: White (6-pairs), Size: X-Large
I have size 13 feet and these are great maybe they’ll stretch and be a bit big but I m fine with that
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Well made socks
Number of Items: 6, Color: Black (6-pairs), Size: X-Large
Made well. Bought for my Son. He only likes Under Armour brand of socks. Only socks he buys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026