Kooks 1-7/8" x 3" stainless long tube headers — the 1-7/8" primary for built JK LS swaps (turbo, stroker, aggressive cam). The larger tube keeps the upper RPM range open on serious LS swap builds. 304 stainless construction with 3/8" thick laser-cut flanges and Torca swivel-seal outlet.
Fits 2007-2018 Jeep Wrangler JK (4-door) with an LS engine swap. Requires Kooks JK LS swap Y-pipe (PN 37103100) downstream.
Kooks Headers & Exhaust has been hand-building stainless headers and exhaust systems in Statesville, North Carolina since 1962. Every Kooks header is welded by experienced fabricators in the same shop where the company's racing roots were established. 304 stainless construction handles thermal cycling and corrosion.
O2 bungs included. Pair with Kooks JK LS swap Y-pipe.
