Stainless Works long-tube headers for 2011–2014 Ford F-150 Raptor 6.2L SuperCrew trucks use 1.875" primaries and 3" slip-fit collectors with merge spikes, plus 3" lead pipes, hi-flow metal matrix catalytic converters and an X-pipe. They are designed to connect to Stainless Works Performance Connect under-bumper or behind-rear-tire exit systems to deliver true-dual X-pipe flow.
Stainless Works 2010-14 Ford F-150 Raptor 1-7/8in Primaries 3in High-Flow Cats X-Pipe