Kooks Headers 1-7/8-Inch Long Tube Headers with High Flow Catted Y-Pipe
Fits 2015-2020 5.0L V8
We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure
Price tracked 10 times since Jul 30, 2026 across the stores we check daily: low $2,806.18, high $3,429.78, currently $3,227.72.
where to buy · 3 retailers tracked
Long tube headers replace the factory exhaust manifolds (the metal tubes right off the engine) with larger, smoother tubes that let the engine breathe out easier, which is where a lot of an exhaust upgrade's power actually comes from. This set includes a catted Y-pipe so it still has catalytic converters for emissions.
why this one — 304 stainless steel construction with a lifetime warranty on the headers, and it bolts to the factory mounting points with no drilling - a cleaner install than headers that need custom fab work.
No manufacturer or independent dyno figure exists for this exact catted-Y-pipe kit on an F-150. Comparable: EngineLabs.com/Westech Performance independent engine-stand dyno test isolating Kooks 1-7/8in primary long-tube headers (same tube diameter) on a built 510whp Coyote: baseline 510.4hp/398.4lb-ft to 531.2hp/406.5lb-ft (+20.8hp/+8.1lb-ft) headers-only, no Y-pipe/cats. Real-world gain on a stock, lower-output F-150 would likely be smaller than shown on that built engine - hence the conservative estimate range rather than quoting the built-engine number directly.
Questions about this category
Gain shown is a community estimate, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.