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 percent 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 InchInlet/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.
Features and Benefits:
- Fits 4-Door with Automatic & Manual Transmissions
- 1-3/4 Inch Primary Tubing, 2-1/8 Inch Secondary Tubes, & 2-1/2 Inch Collector
- 6-2-1 Tri-Y Design
- 3/8 Inch Thick 304 Stainless Steel Head Flanges
- Optimized Tube Lengths for Improved Flow
- Retains Factory O2 Sensor Locations
- 2-1/2 Inch Inlet/Outlet Connection Pipe Mounts Directly to OE Mounting Locations
Details:
- Application: Race Car
- Emission Code: 4
- Engine Make/Size: Ford 4.6L
- Horsepower Increase: 24
- Material: Steel
- Port Shape: Round
- Series: Twisted Steel
- Torque Increase: 27 ft-lbs
- Tube Diameter: 1.75 Inch
- Tube Direction: Down Swept
- Warranty: 2 Year
Applications:
- Nissan Patrol (Y61) 01-16 L6-4.8L