Infiniti Q45 2002-2006 Exhaust Specifications
Infiniti Q45 2002-2006

Infiniti Q45 2002-2006 Exhaust Specifications

Explore the detailed exhaust system specifications for the 2002-2006 Infiniti Q45, including muffler, catalytic converter, exhaust pipes, and manifold. Essential for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the exhaust system of the 2002-2006 Infiniti Q45. It is designed to assist owners, mechanics, and enthusiasts in understanding the components, functionality, and maintenance of the exhaust system. Use the search and navigation instructions to quickly locate specific details or sections of interest.

How to Use

Use the search functionality to find specific keywords or terms related to the exhaust system. Enter terms like 'catalytic converter' or 'muffler' to locate relevant sections quickly.

Navigate through the document using the section titles and subsections. Each major section is organized into subsections with detailed points for easy reference.

Key Specifications

Exhaust Pipe Diameter

2.5 inches

Catalytic Converter Type

Three-way

Muffler Material

Aluminized steel

Horsepower

340 hp

Emissions Standard

EPA Tier 2 Bin 5

Available Specifications

Exhaust System Components

This section outlines the key components of the 2002-2006 Infiniti Q45 exhaust system, including the catalytic converter, muffler, and exhaust pipes. It provides technical details about each part and their roles in the system.

Catalytic Converter
  • Material: Stainless steel
  • Function: Reduces harmful emissions
  • Location: Between the exhaust manifold and muffler
  • Type: Three-way catalytic converter
  • Replacement interval: 100,000 miles
  • Compliance: Meets EPA standards
Muffler
  • Material: Aluminized steel
  • Function: Reduces exhaust noise
  • Location: Rear of the vehicle
  • Design: Chambered construction
  • Replacement interval: 80,000 miles
  • Compatibility: OEM and aftermarket options available
Exhaust Pipes
  • Material: Stainless steel
  • Diameter: 2.5 inches
  • Routing: Underbody to rear
  • Flexibility: Includes flex pipe for vibration reduction
  • Maintenance: Inspect for rust or damage
  • Replacement: Available as single sections or full kits

Performance and Emissions

This section covers the performance characteristics and emissions standards of the exhaust system, including horsepower, torque, and compliance with environmental regulations.

Horsepower and Torque
  • Horsepower: 340 hp
  • Torque: 333 lb-ft
  • Exhaust system contribution: Optimized airflow
  • Performance impact: Enhanced acceleration
  • Modifications: Aftermarket systems available
  • Testing: Dyno-tested for efficiency
Emissions Compliance
  • Standards: EPA Tier 2 Bin 5
  • Testing: Passes smog checks
  • Components: Catalytic converter and O2 sensors
  • Maintenance: Regular inspections required
  • Upgrades: High-flow catalytic converters
  • Environmental impact: Reduced carbon footprint

Maintenance and Troubleshooting

This section provides guidance on maintaining and troubleshooting the exhaust system, including common issues, inspection tips, and replacement procedures.

Common Issues
  • Rust and corrosion
  • Exhaust leaks
  • Muffler damage
  • Catalytic converter failure
  • O2 sensor malfunction
  • Vibration or noise
Inspection and Maintenance
  • Visual inspection every 6 months
  • Check for leaks using soapy water
  • Replace gaskets as needed
  • Clean O2 sensors regularly
  • Monitor exhaust smoke color
  • Use OEM parts for replacements

Component Specifications

Overview

Type
Dual Exhaust System
Configuration
Rear Exit
Platform
FM Platform
Material
Stainless Steel
Location
Underbody

Dimensions

Pipe Diameter
2.5 inches (63.5 mm)
Total Length
120 inches (3048 mm)
Muffler Length
24 inches (610 mm)
Muffler Width
8 inches (203 mm)
Muffler Height
6 inches (152 mm)
Tailpipe Diameter
3 inches (76.2 mm)
Tailpipe Length
18 inches (457 mm)

Materials

Pipes
Stainless Steel
Muffler
Stainless Steel with Fiberglass Insulation
Tailpipes
Polished Stainless Steel
Gaskets
Multi-layer Steel

Features

Performance
  • Optimized Back Pressure
  • Enhanced Flow Efficiency
  • Reduced Exhaust Restriction
Durability
  • Corrosion Resistant
  • High Temperature Tolerance
  • Long-lasting Materials
Aesthetics
  • Polished Tailpipes
  • Sleek Design
  • Integrated Look
Noise Reduction
  • Tuned Muffler
  • Sound Dampening
  • Quiet Operation
installation
  • Direct Bolt-on Fit
  • Factory Mounting Points
  • Minimal Modifications

Safety Features

Heat Management
  • Heat Shields
  • Insulated Muffler
  • Safe Clearance from Body
Emissions
  • EPA Compliant
  • Low Emissions
  • Catalytic Converter Integration

Comfort Features

Noise Level
  • Low Interior Noise
  • Smooth Sound Profile
  • No Drone at Highway Speeds
Vibration
  • Rubber Mounts
  • Vibration Dampening
  • Smooth Operation
Heat Control
  • Insulated Pipes
  • Heat Shields
  • Safe Underbody Temperature

Accessories

Aftermarket
  • Performance Mufflers
  • Custom Tailpipes
  • Exhaust Tips
Maintenance
  • Replacement Gaskets
  • Exhaust Hangers
  • Clamps and Fasteners
Appearance
  • Chrome Tips
  • Carbon Fiber Tips
  • Custom Finishes

Maintenance

Service intervals
  • Inspect Every 15,000 Miles
  • Replace Gaskets Every 30,000 Miles
  • Check Mounts Every 50,000 Miles
Maintenance Notes
  • Ensure Proper Alignment
  • Check for Leaks Regularly
  • Inspect for Corrosion

Warranty

Manufacturer
Miles: 60,000
Years: 5
Coverage: Parts and Labor
Corrosion
Miles: Unlimited
Years: 10
Coverage: Perforation Only
Performance
Miles: 30,000
Years: 3
Coverage: Performance Guarantee
installation
Miles: 12,000
Years: 1
Coverage: Labor Only

Production Details

Manufacturer
Infiniti
Manufacturing Process
  • Laser Cutting
  • Precision Welding
  • Automated Assembly
Quality Control
inspection: 100% Leak Test
Testing: Pressure and Flow Analysis
Standards: ISO 9001 Certified
Sustainability Practices
  • Recyclable Materials
  • Eco-friendly Coatings
  • Energy-efficient Production
Production Metrics
Annual Output: 50,000 Units
Defect Rate: Less than 0.1%

Service Information for Exhaust Service

Maintenance and service requirements specific to the exhaust system

15,000
12
  • Inspect for leaks
  • Check mount integrity
  • Inspect gaskets
  • Verify alignment

Ensure all components are secure and free of damage.

30,000
24
  • Replace gaskets
  • Inspect muffler condition
  • Check heat shields
  • Verify emissions compliance

Use OEM gaskets for best fit and performance.

60,000
48
  • Inspect entire system
  • Check for corrosion
  • Replace worn mounts
  • Test back pressure

Address any corrosion or damage immediately to prevent leaks.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is this exhaust system compatible with all 2002-2006 Infiniti Q45 models?

This exhaust system is specifically designed for the 2002-2006 Infiniti Q45, ensuring compatibility with all trims within these model years. It meets OEM specifications, including fitment for both automatic and manual transmission variants. The system is constructed from high-quality stainless steel for durability and optimal performance. Always verify your vehicle's exact specifications before purchase to ensure a perfect fit.

Q2

What maintenance is required for the exhaust system?

Regular maintenance for the exhaust system includes inspecting for rust, cracks, or leaks, especially in harsh weather conditions. Clean the system periodically to remove debris and corrosion buildup. Check the mounting hardware and gaskets for tightness and wear. Additionally, ensure the catalytic converter and muffler are functioning correctly. Follow the manufacturer’s recommended service intervals to maintain optimal performance and longevity.

Q3

How do I install or replace the exhaust system on a 2002-2006 Infiniti Q45?

To install or replace the exhaust system, first, safely elevate the vehicle and secure it on jack stands. Remove the old exhaust by detaching the mounting brackets and clamps. Install the new system, starting from the front and working backward, ensuring proper alignment. Tighten all connections securely, and check for leaks. Use new gaskets and hardware for a proper seal. Test the system by starting the engine and inspecting for any unusual noises or exhaust leaks.

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 a problem. Inspect for loose or damaged components, including clamps, brackets, or heat shields. Check for leaks at the joints or cracks in the pipes. If the muffler or catalytic converter is damaged, it may need replacement. Ensure all connections are tight and secure. If the issue persists, consult a professional mechanic for a thorough diagnosis and repair.

Q5

How can I optimize the performance of my exhaust system?

To optimize performance, ensure the exhaust system is free of obstructions and leaks. Use high-quality components designed for your vehicle. Consider upgrading to a performance exhaust system for improved airflow and horsepower. Regularly clean and inspect the system to prevent corrosion and damage. Properly tune the engine to match the exhaust modifications for maximum efficiency and performance gains.

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 Q45 Service Manual (2002-2006)

Coming Soon

Comprehensive guide covering maintenance, repair, and technical specifications for the 2002-2006 Infiniti Q45, including the exhaust system.

Technical Service Bulletin: Exhaust System Updates

Coming Soon

Bulletin detailing updates and common issues related to the exhaust system for the 2002-2006 Infiniti Q45.

Infiniti Q45 Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts, including exhaust components, for the 2002-2006 Infiniti Q45.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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