Tri-Y Design: Paired opposite firing cylinders with equal, specifically tuned primary lengths maximizes scavenging and increases torque throughout the power band. 304 Stainless Steel Laser Cut Header Flanges: High quality laser cut 304 stainless steel header flanges provides superior sealing at the head surface. 304 Stainless Steel Tubing: High grade stainless tubing with a uniform brushed finish provides a beautiful look and high resistance to corrosion. TIG-Welded: 100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks. Factory Mounting Locations: 2.5"Inlet/Outlet Connection Pipe mount directly to OE mounting locations. Mandrel Bent Tubing: This system is constructed of mandrel bent, stainless steel brushed tubing for maximum performance, corrosion resistance and strength eliminating cracking. Emissions Disclaimer: This product does not require a CARB EO# (Vehicle does not exist in U.S.). aFe Twisted Steel Headers are engineered and manufactured in our Corona, California manufacturing facility.. Twisted Steel 304 Stainless Steel Race Series Performance Package Nissan Patrol (Y61) 01-16 L6-4.8L. 2-1/2" Inlet/Outlet Connection Pipe Mounts Directly to OE Mounting Locations. Twisted Steel 304 Stainless Steel Race Series Performance Package. 1-3/4" Primary Tubing, 2-1/8" Secondary Tubes, & 2-1/2" Collector. aFe Power Twisted Steel Header 01-16 Nissan Patrol (Y61) I6-4.8L. Fits 4-Door with Automatic & Manual Transmissions. 3/8" Thick 304 Stainless Steel Head Flanges. Optimized Tube Lengths for Improved Flow. Retains Factory O2 Sensor Locations. Twisted Steel Race-Series Header. Twisted Steel Header. 6-2-1 Tri-Y Design

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov