ARH now has a bolt-in 304 stainless steel long tube header system to really push the F-150 raptor performance numbers up a few notches. Built to eliminate extremely restricted exhaust manifolds, this system is also manufactured with everything you'd expect from ARH. 100% American made materials include 3/8" thick flanges with hand-ported inlets, 1-3/4" primaries, merge collectors with scavenger spikes, ball socket connections with Grade 8 hardware, true 2 into 1 merged Y-pipe with a 3-1/2" outlet and 200 cell metallic substrate cats. Expect HP at the wheel and torque gains of at least 25-30 before tuning and a guaranteed great fit and finish.
