Kooks header and green catted Y-pipe kit for 2015–2020 Ford F-150 (XLT, Lariat, XL, King Ranch, Platinum) uses 1-3/4 x 3 headers with a green catted Y-pipe to reduce backpressure and improve exhaust pulse tuning. Kooks applies its race-derived design to produce stronger throttle response and better flow across the rpm range in a direct-replacement assembly.
Kooks 15-20 Ford F-150 XLT Lariat XL King Ranch Platinum 1-3/4 x 3 Header & Green Catted Y-Pipe Kit