aFe Power's Twisted Steel long tube header and connection pipe deliver +24 HP and +27 lbs. x ft. torque over the factory.
This system is constructed with 1-3/4 Inch primary to 2-1/8 Inch secondary, and 2-1/2 Inch mandrel bent, 304 stainless steel, brush finished tubing for greater exhaust flow and longevity. 100 percent hand Tig-welded by certified craftsmen for proven durability. The long tube header incorporates a 6-2-1 Tri-Y designed.
These features create a smooth transition to eliminate dead zones and improve flow. High quality band clamps and hardware to provide a quick, hassle-free installation. Performance Gains: +24 HP / +27 lbs.
x ft. Torque max gains (Tested on a 2005 Nissan Patrol (Y61) I6-4.8L 4-Door Automatic). Tri-Y Design: Paired opposite firing cylinders with equal, specifically tuned primary lengths maximizes scavenging and increases torque throughout the power band.
Stainless Steel Tubing & Laser Cut Header Flanges: High grade 304 stainless tubing with a uniform brushed finish provides a beautiful look and high resistance to corrosion. Laser cut 304 stainless steel header flanges provides superior sealing at the head surface. High-Flow Catalytic Converter: This system utilizes a high flow, 400 cell catalytic converter for maximum flow.
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: 2-1/2 Inch flanged connection pipe mounts directly to OE mounting location.
Leak-Free Seal: High quality band clamps are used for a complete 360-degree sealing surface. 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:
- 304 Stainless Steel
- 1-3/4 Inch, 2-1/8 Inch, into 2-1/2 Inch Collector
- 6-2-1 Tri-Y Designed Headers
- High Quality 3/8 Inch Thick, 304 Stainless Steel Laser-Cut Head Flanges
- Includes Hi-Flow, Ceramic, 400 Cell Catalytic Converter
- Incorporates a Second Bung for Either a Wide-Band O2 Gauge or Auxiliary Instrumentation
- Fits 2-Door Model Only
Details:
- Application: Automotive
- Emission Code: 4
- Engine Make/Size: Nissan 4.8L
- Horsepower Increase: 24
- Material: Steel
- Port Shape: Round
- Series: Twisted Steel
- Torque Increase: 27 ft-lbs
- Tube Diameter: 2.5 Inch
- Tube Direction: Down Swept
- Warranty: 2 Year
Applications:
- Nissan Patrol (Y61) 01-16 V8-4.8L