Infiniti QX56 2004-2010 Exhaust Specifications
Infiniti QX56 2004-2010

Infiniti QX56 2004-2010 Exhaust Specifications

Explore detailed exhaust system specifications for the 2004-2010 Infiniti QX56. Learn about components, compatibility, and performance upgrades in this comprehensive guide.

Updated

Overview Specifications

This document provides detailed specifications and information about the exhaust system of the 2004-2010 Infiniti QX56. It is designed to assist owners, mechanics, and enthusiasts in understanding the components, features, and technical details of the exhaust system. Use the search functionality to find specific terms or navigate through the sections to explore different aspects of the exhaust system.

How to Use

Use the search bar to enter specific keywords related to the exhaust system, such as 'catalytic converter' or 'muffler.' The search results will highlight relevant sections and details within the document.

Scroll through the document to explore major sections and subsections. Click on section titles to expand and view detailed information about specific components and features of the exhaust system.

Key Specifications

Exhaust Diameter

2.5 inches

Catalytic Converter Efficiency

95%

Muffler Material

Stainless Steel

Exhaust System Weight

45 lbs

Noise Level

72 dB

Available Specifications

Exhaust System Components

This section covers the primary components of the exhaust system in the 2004-2010 Infiniti QX56. It includes details about the exhaust manifold, catalytic converter, muffler, and tailpipe, along with their functions and specifications.

Exhaust Manifold
  • Made of cast iron for durability
  • Connects to the engine's cylinder head
  • Designed to collect exhaust gases from multiple cylinders
  • Includes heat shields to reduce engine bay temperatures
Catalytic Converter
  • Reduces harmful emissions by converting pollutants
  • Contains a honeycomb structure coated with catalysts
  • Located between the exhaust manifold and muffler
  • Complies with EPA emissions standards
Muffler
  • Reduces exhaust noise using sound-dampening materials
  • Constructed from stainless steel for corrosion resistance
  • Internally designed with chambers and baffles
  • Positioned near the rear of the vehicle

Exhaust System Performance

This section focuses on the performance characteristics of the exhaust system, including flow efficiency, noise levels, and emissions control. It also highlights the impact of the exhaust system on the vehicle's overall performance.

Flow Efficiency
  • Optimized for minimal backpressure
  • Improves engine efficiency and power output
  • Features smooth bends and mandrel-bent piping
  • Supports high exhaust gas velocity
Noise Levels
  • Designed to meet stringent noise regulations
  • Produces a deep, refined exhaust note
  • Utilizes advanced acoustic engineering
  • Minimizes cabin noise intrusion
Emissions Control
  • Equipped with a high-efficiency catalytic converter
  • Reduces CO, NOx, and hydrocarbon emissions
  • Monitored by an onboard diagnostics system (OBD-II)
  • Supports cleaner air quality standards

Maintenance and Troubleshooting

This section provides guidance on maintaining the exhaust system and troubleshooting common issues. It includes tips for inspection, cleaning, and identifying potential problems.

Routine Inspection
  • Check for rust and corrosion on metal components
  • Inspect gaskets and seals for leaks
  • Look for cracks or damage in the exhaust manifold
  • Ensure all mounting brackets are secure
Common Issues
  • Excessive noise due to muffler damage
  • Reduced performance from clogged catalytic converter
  • Leaks caused by worn-out gaskets
  • Vibrations from loose or broken hangers
Cleaning Tips
  • Use a wire brush to remove surface rust
  • Apply high-temperature paint to prevent corrosion
  • Clean the catalytic converter with specialized products
  • Avoid harsh chemicals on rubber components

Component Specifications

Overview

Type
Dual Exhaust System
Configuration
Rear Exit
Platform
Full-size SUV
Material
Stainless Steel
Location
Underbody

Dimensions

Overall Length
78.74 inches (2000 mm)
Pipe Diameter
2.5 inches (63.5 mm)
Muffler Length
28.74 inches (730 mm)
Muffler Width
9.84 inches (250 mm)
Muffler Height
7.87 inches (200 mm)
Tailpipe Diameter
3.15 inches (80 mm)
Tailpipe Length
12.6 inches (320 mm)

Materials

Pipes
409 Stainless Steel
Muffler
Aluminized Steel
Catalytic Converter
Ceramic Substrate with Stainless Steel Housing
Hangers
Rubber with Steel Inserts

Features

Performance
  • Optimized Flow Design
  • Reduced Back Pressure
  • Enhanced Engine Efficiency
Durability
  • Corrosion-Resistant Materials
  • Heat-Resistant Coatings
  • Reinforced Hangers
Noise Reduction
  • Tuned Muffler Design
  • Sound Dampening Technology
  • Low Resonance Frequency
Emissions
  • Catalytic Converter Integration
  • Oxygen Sensor Compatibility
  • Compliant with EPA Standards
Aesthetics
  • Polished Tailpipe Tips
  • Sleek Underbody Design
  • Factory-Fit Appearance

Safety Features

Heat Management
  • Heat Shields
  • Thermal Insulation
Structural integrity
  • Reinforced Welds
  • Impact-Resistant Materials
Emissions Control
  • Catalytic Converter
  • Oxygen Sensors

Comfort Features

Noise Level
Low Interior Resonance
Vibration Reduction
Isolated Mounting System
Heat Dissipation
Effective Underbody Ventilation
Aesthetics
Factory-Fit Design

Accessories

Upgrades
  • Performance Mufflers
  • High-Flow Catalytic Converters
  • Stainless Steel Tips
Maintenance Tools
  • Exhaust Hanger Removal Tool
  • Pipe Cutter
  • Clamp Set
Replacement Parts
  • Gaskets
  • Clamps
  • Hangers

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for Leaks
  • Check Hangers and Mounts
  • Clean Tailpipe Tips
  • Inspect Catalytic Converter
  • Check Oxygen Sensors
Maintenance Notes
Regular inspection prevents corrosion and ensures optimal performance.

Warranty

Standard
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Emissions
Miles: 80,000
Years: 8
Coverage: Catalytic Converter and Oxygen Sensors
Extended
Miles: 100,000
Years: 5
Coverage: Limited to Major Components
Corrosion
Miles: Unlimited
Years: 7
Coverage: Perforation Only

Production Details

Manufacturer
Infiniti
Manufacturing Process
  • Laser Cutting
  • Robotic Welding
  • Pressure Testing
Quality Control
inspections: Dimensional Accuracy
Testing: Pressure and Leak Tests
Certifications: ISO 9001
Sustainability Practices
  • Recycled Materials
  • Emission Control Standards
  • Energy-Efficient Manufacturing
Production Metrics
Units Per Day: 500
Defect Rate: 0.1%
Lead Time: 2 Weeks

Service Information for exhaust Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect for Leaks
  • Check Hangers and Mounts
  • Clean Tailpipe Tips
  • Inspect Catalytic Converter
  • Check Oxygen Sensors

Regular inspection prevents corrosion and ensures optimal performance.

60,000
48
  • Replace Gaskets
  • Inspect and Tighten Clamps
  • Check for Corrosion
  • Test Emissions
  • Inspect Heat Shields

Use manufacturer-recommended parts for replacements.

100,000
84
  • Replace Catalytic Converter
  • Replace Oxygen Sensors
  • Inspect and Replace Muffler if Necessary
  • Comprehensive Emissions Test
  • Check Entire Exhaust System for Integrity

Major service requires specialized tools and equipment.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the exhaust system compatible with both 2WD and 4WD models of the 2004-2010 Infiniti QX56?

Yes, the exhaust system is compatible with both 2WD and 4WD models of the 2004-2010 Infiniti QX56. It is designed to fit seamlessly with the vehicle's chassis and drivetrain configurations. The system includes all necessary components such as the muffler, catalytic converter, and piping, ensuring proper alignment and functionality. Always verify compatibility with your specific model year and trim before purchasing.

Q2

What are the maintenance requirements for the exhaust system?

Regular maintenance for the exhaust system includes inspecting for rust, cracks, and leaks every 12,000 miles or annually. Ensure all connections and hangers are secure. Clean the exterior of the exhaust components to prevent corrosion. Replace worn-out gaskets and seals promptly. Adhering to these practices will extend the lifespan of the exhaust system and maintain optimal performance.

Q3

How do I install or replace the exhaust system on a 2004-2010 Infiniti QX56?

To install or replace the exhaust system, first, safely lift the vehicle using a jack and secure it on jack stands. Remove the old exhaust system by detaching the hangers and unbolting the connections. Align the new exhaust system, starting from the front, and secure it using the provided hardware. Ensure all connections are tight and the system is properly aligned. Test for leaks before lowering the vehicle.

Q4

What should I do if my exhaust system is making unusual noises?

Unusual noises from the exhaust system, such as rattling or hissing, often indicate loose components, leaks, or damage. Inspect the system for loose hangers, broken brackets, or holes in the piping. Tighten or replace any faulty parts. If the issue persists, check the catalytic converter and muffler for internal damage. Consulting a professional mechanic may be necessary for complex issues.

Q5

How can I optimize the performance of my exhaust system?

To optimize performance, consider upgrading to a high-flow catalytic converter and performance muffler. Ensure the exhaust piping is free of restrictions and properly aligned. Regularly inspect and maintain the system to prevent leaks and corrosion. Proper tuning of the engine can also enhance exhaust efficiency. These steps will improve airflow, reduce backpressure, and boost overall vehicle performance.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Infiniti QX56 Service Manual

Coming Soon

Comprehensive service manual covering all aspects of maintenance and repair for the 2004-2010 Infiniti QX56, including the exhaust system.

Technical Service Bulletin for Exhaust System

Coming Soon

Latest updates and fixes for common exhaust system issues in the 2004-2010 Infiniti QX56.

Infiniti QX56 Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket parts for the 2004-2010 Infiniti QX56, including exhaust components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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