Injen X-1021-BB SuperNano Air Filter 3.5
Injen X-1021-BB SuperNano Air Filter 3.5
Injen X-1021-BB SuperNano Air Filter 3.5
Injen X-1021-BB SuperNano Air Filter 3.5

Injen X-1021-BB SuperNano Air Filter 3.5" Inlet/ 6 " Base/ 6 7/8" Tall/5" Top

$82.95 In Stock Sold out




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With a rich history in racing and the street performance, Injen Technology has proven itself as a leader in filtration engineering and technology. Lab tested and race proven, Injens air filter line features state of the art designs and performance. All SuperNano-Web air filters feature a proprietary media that includes and high-flow base media with a highly efficient Nano membrane applied on top. This allows our SuperNano-Web media to flow the maximum amount of air, all while protecting your valuable engine from harmful dirt and debris. 100% cleanable with a light blast of compressed air and requiring no oil to function properly, youll never have to worry about your MAF sensor becoming dirty from over oiling your air filter again!

Lab Tested Race Proven!

Our media was lab tested by an outside lab to ensure accuracy and filtration performance. We then took that data and tested in the harshest conditions by racing the Baja 1000 in Mexico and also throughout the sand dunes of the Middle East all to provide you with best air filter that money can buy.

Improve Performance while Protecting Your Engine.

Injens High-flow SuperNano-Web media was designed to improve airflow and filtration efficiency resulting in increased horsepower and torque, all while protecting your engine from harmful dirt and contaminants.


  • Injen X-1021-BB Technology SuperNano-Web Air Filter. Buy now and get same day shipping!
  • Direct Fit for many Injen intakes and/or universal applications
  • Fully serviceable Injen SuperNano-Web dry air filter
  • Dry filtration media no oil required for maximum performance
  • Conical Air Filter Shape
  • Stainless steel band clamp with inner protective liner
  • Deep pleats for maximum airflow and efficiency
  • Made in Pomona California, USA
  • Flange Inside Diameter: 3.50
  • Flange Height: 1.75
  • Base Outside Diameter: 6.00
  • Media Height: 6.875
  • Overall Height: 8.375" +/- .150"
  • Top Outside Diameter: 5.350 Inertia Top
  • Top Style: Closed Inertian Cone Top


  • 3.50" Flange ID, 6" Base / 6.875" Media Height / 5.350" Inertia Top


  • We do our best to ship most items same or next day.
  • For all products, free fast delivery of the UPS is already included in the price.

Shipping is Free 🙂



Shipping and Delivery Times


  • All in-stock products are shipped within one business day. Delivery usually takes 2-5 business days. We have a large number of warehouses in different states which allows us to deliver the orders very fast.





  • Most products are shipped via UPS Ground, FedEx depending on size with some large items shipped by SAIA or others.
  • Once your order ships, tracking details will be emailed to you.



Where’s my order?


  • Good question, when tracking details have been provided that means your order has been processed and shipped. Tracking details usually appear in the shipper’s database within one business day, i.e. UPS and FedEx generally provide point-in-time tracking meaning your order location is updated as it is scans and gets closer to you.  Most orders should arrive within 2-5 business days. Still have an issue with delivery, please contact us to see how we can help.





  • Cancellations are free. Please contact us ASAP if you need to cancel your order.

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