The Stainless Works long-tube headers for 2011–2014 Ford F-150 5.0L (2WD/4WD Screw/Scab trucks) are constructed from 304L stainless steel in the USA. These headers feature 1-3/4" primaries, 3" slip-fit collectors and 3" catted lead pipes with an X-pipe and internal resonator to connect cleanly to Stainless Works performance exhaust components.
Stainless Works 2011-14 F-150 5.0L 1-3/4in Primaries 3in High-Flow Cats X-Pipe