Performance Air Intake W/Heat Shield for Infinity QX56 (2011-2013) with 5.6L V8 Engine Black

Infiniti QX56 Performance Induction: Optimized Airflow for the VK56VD V8

Who It’s For: Engineered for 2011-2013 Infiniti QX56 owners running the VK56VD 5.6L V8 powerplant who are tired of the stock sluggishness and delayed throttle response inherent in heavy-chassis SUVs.

The Symptom: The factory intake on the VK56VD is designed for whisper-quiet luxury, not mechanical efficiency. It relies on a restrictive air box and convoluted accordion-style plastic tubing that creates massive air turbulence before it ever reaches the throttle body. This turbulence creates a bottleneck, making the vehicle feel heavy and unresponsive when you’re trying to merge onto the highway or pull a trailer. The engine is essentially gasping for air through a series of baffles meant to silence the very sound a V8 should be making.

The Engineering Fix: This system optimizes fluid dynamics by replacing the restrictive factory plumbing with a mandrel-bent T304 aluminum tube. This design provides a straight, smooth path for incoming air, significantly reducing drag and increasing the velocity of the air charge. By isolating the filter with a dedicated aluminum heat shield and an integrated insulation mat, we lower the intake air temperatures (IATs). Cooler air is denser air, and denser air carries more oxygen into the combustion chamber, resulting in a more potent explosion and immediate torque gains.

Why Mechanics Choose This Kit

• Enhanced Torque Curve: By improving volumetric efficiency, this kit provides a boost in horsepower and torque of up to 10%, which is critical for overcoming the inertia of the QX56’s heavy frame.
• V8 Acoustic Signature: Removes the factory sound-deadening resonators to reveal a deep, authoritative V8 induction roar that only becomes aggressive under heavy throttle.
• Thermal Management: The T304 lightweight aluminum piping and shielded insulation mat prevent heat soak, ensuring that the engine doesn’t lose power during long summer hauls or stop-and-go traffic.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2011 Infiniti QX56 (5.6L V8 Engine)
• 2012 Infiniti QX56 (5.6L V8 Engine)
• 2013 Infiniti QX56 (5.6L V8 Engine)

Interchange Part Numbers:

QX56-56-2011, QX56-56-2012, QX56-56-2013, 5.6L-V8-Induction-Black

The Performance Promise

This kit is a direct bolt-on solution that requires no permanent vehicle modifications. For optimal results, we recommend disconnecting the battery terminal for ten minutes after installation to allow the ECU to recalibrate for the increased airflow volume. Buy with confidence. Backed by real automotive experts and fast shipping.