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. 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 Design
• 3/8 Inch Thick, 304 Stainless Steel Laser Cut Head Flanges
• 100 percent Tig-Welded by Certified Craftsmen
• Incorporates a Second Bung for Either a Wide-Band O2 Gauge or Auxiliary Instrumentation
• Fits the Two Door Model Only

Details:

• Application: Race Car
• 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