Stainless Works Long Tube Header Kit w/ High-Flow Cats (FT11HCAT) - 2011–2014 Ford F-150 5.0L
Unlock serious power and a deeper, more aggressive exhaust note from your 2011–2014 Ford F-150 5.0L with the Stainless Works Long Tube Header Kit. Designed for maximum airflow and flexibility, this system allows you to choose between a factory-style connection or a true dual performance connection when paired with a compatible catback.
These headers begin with heavy-duty 3/8-inch thick flanges welded to CNC mandrel-bent primary tubes, available in either 1-3/4-inch or 1-7/8-inch diameters to suit your performance goals. The primaries merge into slip-fit collectors with integrated merge spikes, improving exhaust scavenging before flowing into Stainless Works high-flow catalytic converters for increased power and efficiency.
Constructed from corrosion-resistant 304 stainless steel and fully TIG welded at Stainless Works’ state-of-the-art facility in Streetsboro, Ohio, this header system is built to handle heat, mileage, and hard use. Backed by a lifetime warranty and proudly made in the USA, it’s the ideal foundation for a high-performance F-150 exhaust setup.
Features
- Long tube header system for 2011–2014 Ford F-150 5.0L
- Choice of factory connection or true dual performance connection
- Available 1-3/4-inch or 1-7/8-inch primary tube options
- Heavy-duty 3/8-inch thick header flanges
- Slip-fit collectors with integrated merge spikes
- Integrated high-flow catalytic converters
- Smooth mandrel-bent tubing for optimized exhaust flow
- Constructed from corrosion-resistant 304 stainless steel
- Fully TIG welded for strength, durability, and appearance
- Fits SuperCrew and SuperCab trucks in 2WD or 4WD configurations
- Made in the USA with a lifetime warranty
Fitment
- 2011 Ford F-150 5.0L
- 2012 Ford F-150 5.0L
- 2013 Ford F-150 5.0L
- 2014 Ford F-150 5.0L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

