


K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - LargeLight weight yet durable, K&N's Sprint Car Style Air Boxes are a must for any racer currently using traditional multi Siamese stacks. Constructed from ultra light weight carbon fiber K&N's Sprint Car Style air box provides ample air flow for your racing needs. As with all K&N filters, it is a washable and reusable air filter. Simply use K&N oil and cleaner to service your filter.
Quick Dispatch:
Your K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large 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 Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large ships.
Need Help?
Questions about K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large, 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 Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large 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
4.3 ★★★★★
Based on 83 reviews
Sort
Product Reviews
★★★★★ 5
Better than expected!
Color: Black
This set has everything you need to put together some beautiful LEE crafted shelves! They are real wood and the kit makes it simple to put together a beautiful wall display.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 4
Ease of setup
Color: Black
Nice and easy setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
★★★★★ 5
Does the job!
Color: Black
This added a beautiful space to my room! Very easy to install and includes everything you need to do so!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
★★★★★ 5
Quality
Color: Black
Beautiful….well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Use all pieces included
Color: Black
Hold good weight
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026