
True Flow sealed air intake systems retain the factory air box while replacing the restrictive factory air tube. The combination of mandrel-bent, powder-coated tubes, silicone couplers and foam air filters nets significant gains in performance and fuel efficiency.
True Flow Air Intake Systems
When Performance Counts
Retains Factory Air Box
Proven Performance Gains
No-Modification Installation
Full Depth Wash and Reuse Filter
Limited Lifetime Warranty
50 State/Canada Legal (C.A.R.B. Approved)
Will Not Void Factory Warranty


True Flow foam air filters offer the best combination of filtration and airflow. Foam filters are made up of tiny interlocking cells that trap and distribute dirt particles throughout the entire volume of the foam. Washable and reusable, foam filters are a lifetime of filtration and performance.
True Flow Foam Air Filters
Stop Dirt, Not Air
Full Depth Filtration
Great Performance
Wash and Reuse
Limited Lifetime Warranty
Limited Lifetime Warranty
What is Covered
This warranty covers any defects in materials or workmanship, with the exceptions stated below.
How Long Coverage Lasts
This warranty lasts as long as you own your True Flow product. Coverage terminates if you sell
or otherwise transfer the product.
Millennium Line-X & Truck Accessories |