Manifold Headers for Nissan Titan Armada & Infiniti QX56 (2004-2015) 5.6L - Stainless Steel
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Stainless Steel Headers for Nissan Titan/Armada & Infiniti QX56 5.6L V8
The Nissan VK56DE V8 powers three of the most capable full-size vehicles ever built—the Titan truck, Armada SUV, and luxurious Infiniti QX56. This proven 5.6L powerplant delivers 317-400 horsepower depending on year and application, but restrictive factory exhaust manifolds leave significant performance on the table. Our precision-engineered stainless steel headers unlock 10-15 horsepower and torque gains throughout the powerband, transforming towing capability, acceleration, and throttle response while adding the aggressive V8 soundtrack these impressive machines deserve.
Unleash Full-Size V8 Performance
Experience dramatic improvements as the optimized tubular header design with 1-7/8" x 1-3/8" oval-port inlets feeding 3" collectors eliminates exhaust restriction. Factory cast manifolds create backpressure that limits power precisely when you need it most—towing heavy trailers, accelerating with passengers and gear, or conquering challenging terrain. These headers optimize exhaust scavenging for measurable gains: stronger low-end torque for confident towing, enhanced mid-range acceleration for passing, improved high-RPM breathing, and the deep, muscular exhaust note that announces serious capability.
Premium Engineering for Heavy-Duty Performance
Constructed from high-grade stainless steel with precision CNC-machined flanges and professional TIG/MIG welded joints, these headers withstand the demanding conditions of towing, hauling, and off-road use. Four O2 sensor bungs maintain proper emissions functionality across all catalytic converters. The robust construction resists cracking from thermal cycling and vibration while the stainless finish provides lasting corrosion resistance. This is the quality heavy-duty truck and SUV owners demand for vehicles that work hard and play harder.
Professional Installation Recommended
These headers require comprehensive exhaust work including removal of factory manifolds and proper integration with downstream exhaust components. Installation instructions are not included—consult factory service manual or experienced shop familiar with VK56DE platforms. The investment in proper installation ensures optimal performance, leak-free operation, and years of enhanced capability from your Nissan or Infiniti V8.
Perfect Fitment For:
- 2004-2015 Nissan Titan - 5.6L VK56DE V8
- 2004-2015 Nissan Armada (incl. 2004 Pathfinder Armada) - 5.6L VK56DE V8
- 2004-2010 Infiniti QX56 - 5.6L VK56DE V8
Unlock 10-15 HP and torque gains. Transform your full-size V8's towing capability, acceleration, and sound with precision-engineered headers. Shop now.
Common Questions
Which vehicles and engine does this header set fit?
These headers fit the 5.6L VK56DE V8 engine in the 2004-2015 Nissan Titan, 2004-2015 Nissan Armada, and 2004-2010 Infiniti QX56.
Will these headers fit a 2011-2013 Infiniti QX56 with the VK56VD engine?
This header kit is built specifically for the first-generation 5.6L VK56DE V8 engine found in 2004-2010 Infiniti QX56 models and 2004-2015 Nissan Titan and Armada trucks.
What kind of power gains can I expect?
Replacing the restrictive cast factory manifolds with these free-flowing stainless steel headers unlocks 10-15 horsepower and torque gains across the powerband.
Do these headers have ports for the factory oxygen sensors?
Yes, four O2 sensor bungs are welded into the headers to accommodate your factory sensors.
Are installation instructions included in the box?
Installation instructions are not included. Because installing headers on the 5.6L V8 requires removing the factory manifolds and integrating with downstream exhaust piping, professional installation or use of a factory service manual is recommended.
Fitment
Fitment
Warranty
Warranty
