Add V8 Power and Torque to your 1987-2006 Jeep Wrangler YJ/TJ/LJ with the Gen III Hemi Engine. The headers have 1-3/4 inch primary tubes, 2-1/2 inch collectors and are built from lightweight 304 stainless steel. The tube geometry and collector outlet positions are specifically designed for this application to maximize component compatibility, clearance and suspension travel. They work with BlackHeart Y-pipe and engine mounting brackets to provide a simple engine swap solution.