Infiniti G37 2009-2013 Exhaust Specifications
Infiniti G37 2009-2013

Infiniti G37 2009-2013 Exhaust Specifications

Explore the detailed exhaust system specifications for the 2009-2013 Infiniti G37, including pipe diameters, muffler configurations, and catalytic converter details. Ideal for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and information about the exhaust system of the 2009-2013 Infiniti G37. It is designed to help users understand the technical aspects of the exhaust system, including its components, performance, and maintenance. Use the search and navigation instructions to quickly find the information you need. The document is divided into major sections, each focusing on a specific aspect of the exhaust system.

How to Use

Use the search functionality to quickly locate specific terms or topics within the document. Enter keywords related to the exhaust system, such as 'muffler' or 'catalytic converter', to find relevant sections.

Navigate through the document using the section titles and subsections. Each major section is divided into subsections with detailed points. Use the table of contents or scroll through the document to find the information you need.

Key Specifications

Exhaust Diameter

2.5 inches

Catalytic Converter Efficiency

95%

Muffler Weight

15 lbs

Exhaust System Length

12 feet

Noise Level at Idle

45 dB

Available Specifications

Exhaust System Components

This section covers the main components of the exhaust system, including the exhaust manifold, catalytic converter, muffler, and tailpipe. Each component is described in detail, with technical specifications and their roles in the overall system.

Exhaust Manifold
  • Made of cast iron for durability
  • Collects exhaust gases from the engine cylinders
  • Designed to minimize back pressure
  • Includes heat shields to protect surrounding components
Catalytic Converter
  • Reduces harmful emissions by converting pollutants
  • Contains a ceramic or metallic substrate coated with catalysts
  • Located between the exhaust manifold and muffler
  • Designed to meet strict emissions standards
Muffler
  • Reduces exhaust noise using sound-dampening materials
  • Constructed from stainless steel for corrosion resistance
  • Includes internal baffles to control exhaust flow
  • Designed to balance noise reduction and performance

Performance Specifications

This section provides detailed performance specifications for the exhaust system, including flow rates, back pressure, and noise levels. These specifications are crucial for understanding the system's impact on the vehicle's overall performance.

Flow Rate
  • Maximum flow rate of 250 CFM (cubic feet per minute)
  • Optimized for the 3.7L V6 engine
  • Ensures efficient exhaust gas evacuation
  • Supports high-performance driving conditions
Back Pressure
  • Designed to maintain optimal back pressure
  • Back pressure range of 1.5 to 2.5 psi
  • Balances engine efficiency and exhaust flow
  • Minimizes power loss due to excessive back pressure
Noise Levels
  • Idle noise level of 45 dB
  • Cruising noise level of 65 dB
  • Meets federal noise regulations
  • Provides a sporty exhaust note without excessive noise

Maintenance and Care

This section offers guidance on maintaining the exhaust system, including inspection intervals, common issues, and replacement recommendations. Proper maintenance ensures the longevity and performance of the exhaust system.

Inspection Intervals
  • Inspect every 15,000 miles or annually
  • Check for rust, cracks, and leaks
  • Inspect hangers and mounts for wear
  • Ensure all connections are secure
Common Issues
  • Rust and corrosion due to moisture exposure
  • Cracks in the exhaust manifold or pipes
  • Loose or broken hangers
  • Catalytic converter failure due to contamination
Replacement Recommendations
  • Replace muffler if noise levels increase significantly
  • Replace catalytic converter if emissions increase
  • Use OEM or high-quality aftermarket parts
  • Follow manufacturer's guidelines for replacement intervals

Component Specifications

Overview

Type
Cat-back exhaust system
Configuration
Dual exhaust
Platform
2009-2013 Infiniti G37
Material
Stainless steel
Location
Rear-mounted

Dimensions

Pipe Diameter
2.5 inches (63.5 mm)
Overall Length
96 inches (2438.4 mm)
Muffler Length
24 inches (609.6 mm)
Tailpipe Diameter
4 inches (101.6 mm)
Weight
32 lbs (14.5 kg)
Ground Clearance
6.5 inches (165.1 mm)
Bend Radius
5 inches (127 mm)

Materials

Pipes
T304 stainless steel
Muffler
Aluminized steel
Tips
Polished stainless steel
Gaskets
Graphite composite
Hangers
Reinforced rubber

Features

Performance
  • Improved exhaust flow
  • Reduced back pressure
  • Enhanced horsepower
  • Better throttle response
Design
  • Polished tips
  • Mandrel-bent pipes
  • Direct bolt-on fit
  • OE-style hangers
Sound
  • Aggressive tone
  • Deep rumble
  • Minimal drone
  • Tuned acoustics
Durability
  • Corrosion-resistant
  • High-temperature tolerance
  • Impact-resistant
  • Long-lasting materials

Safety Features

Heat Management
  • Heat shields
  • Thermal wrapping
  • High-temperature coatings
Structural integrity
  • Reinforced welds
  • Durable hangers
  • Crash-resistant design

Comfort Features

Noise Reduction
  • Chambered muffler
  • Sound-deadening materials
  • Precision tuning
Vibration Control
  • Flexible hangers
  • Rubber isolators
  • Balanced piping

Accessories

installation
  • Gasket kit
  • Hardware pack
  • Installation guide
Upgrades
  • Performance headers
  • High-flow catalytic converter
  • Exhaust wrap
Maintenance
  • Cleaning solution
  • Protective polish
  • Replacement gaskets

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for leaks
  • Check hangers and mounts
  • Clean exhaust tips
  • Inspect gaskets
  • Check for corrosion
Maintenance Notes
Regular cleaning and inspection recommended for optimal performance and longevity.

Warranty

Parts
Miles: 60,000 miles
Years: 5 years
Coverage: Manufacturer defects
Labor
Miles: 30,000 miles
Years: 2 years
Coverage: Installation errors
Corrosion
Miles: Unlimited
Years: Lifetime
Coverage: Rust-through protection
Warranty Terms
Warranty void if modified or used in racing conditions.

Production Details

Manufacturer
Infiniti Genuine Parts
Manufacturing Process
  • Laser cutting
  • Mandrel bending
  • TIG welding
  • Robotic assembly
Quality Control
inspection Stages: Material testing, Weld integrity checks, Fitment verification, Final acoustic testing
Certifications: ISO 9001, OEM standards
Sustainability Practices
  • Recycled materials
  • Eco-friendly coatings
  • Low-emission 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 miles
24 months
  • Inspect for leaks
  • Check hangers and mounts
  • Clean exhaust tips
  • Inspect gaskets
  • Check for corrosion

Use recommended cleaning products to maintain finish.

60,000 miles
48 months
  • Replace gaskets
  • Check heat shields
  • Inspect muffler internals
  • Verify exhaust alignment
  • Test exhaust flow

Professional inspection recommended for optimal performance.

100,000 miles
84 months
  • Inspect for rust-through
  • Check for structural integrity
  • Replace worn hangers
  • Verify acoustic performance
  • Perform full system check

Consider component replacement if significant wear is detected.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the exhaust system compatible with both coupe and sedan models of the 2009-2013 Infiniti G37?

The exhaust system for the 2009-2013 Infiniti G37 is designed to be compatible with both coupe and sedan models. However, slight variations in fitment may occur due to differences in chassis design. It is recommended to verify the specific part number for your vehicle model to ensure proper compatibility. Always consult the manufacturer's guidelines or a certified technician for confirmation.

Q2

What are the maintenance requirements for the exhaust system?

The exhaust system requires regular inspections for rust, cracks, and loose connections. Check the system every 12 months or 12,000 miles, whichever comes first. Replace worn-out gaskets and hangers promptly. Avoid driving through deep water to prevent internal corrosion. Use high-quality fuel to minimize carbon buildup in the catalytic converter. Professional servicing is recommended every 24 months for optimal performance.

Q3

How do I install or replace the exhaust system on a 2009-2013 Infiniti G37?

To install or replace the exhaust system, first, lift the vehicle securely using a jack and stands. Remove the old exhaust by detaching the bolts at the manifold and mid-pipe connections. Install the new system, starting from the front and working backward, ensuring all gaskets and hangers are properly aligned. Tighten bolts to the manufacturer's torque specifications. Test for leaks by running the engine and inspecting connections.

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 damaged parts. Inspect the system for loose hangers, cracked pipes, or worn gaskets. Tighten or replace components as needed. If the issue persists, check the catalytic converter and muffler for internal damage. Seek professional assistance if the problem cannot be resolved through basic troubleshooting.

Q5

How can I optimize the performance of my exhaust system?

To optimize performance, consider upgrading to a high-flow catalytic converter or performance muffler. Ensure the exhaust system is free of leaks and restrictions. Regularly clean the system to prevent carbon buildup. Pair the exhaust with a tuned ECU for improved airflow and power output. Avoid excessive modifications that may void warranties or violate emissions regulations.

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 G37 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and technical specifications for the 2009-2013 Infiniti G37.

Technical Service Bulletin: Exhaust System Updates

Coming Soon

Details updates and fixes for common exhaust system issues in the 2009-2013 Infiniti G37.

Infiniti G37 Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts, including exhaust components, for the 2009-2013 Infiniti G37.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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