Mazda Mazda CX-9 2007-2015 Exhaust Specifications
Mazda Mazda CX-9 2007-2015

Mazda Mazda CX-9 2007-2015 Exhaust Specifications

Explore detailed exhaust system specifications for the 2007-2015 Mazda CX-9, including components like the catalytic converter, muffler, and exhaust manifold. Ideal for repairs, upgrades, and maintenance.

Updated

Mazda CX-9 Exhaust System Overview Specifications

This document provides detailed specifications and technical information about the exhaust system of the 2007-2015 Mazda CX-9. It covers key components, maintenance tips, and performance insights. Whether you're a car enthusiast, mechanic, or owner, this guide will help you understand and maintain your CX-9's exhaust system effectively. Use the search and navigation features to quickly find the information you need.

How to Use

Use the search function to quickly locate specific terms or components within the document. Enter keywords like 'catalytic converter', 'muffler', or 'exhaust manifold' to find relevant sections.

Navigate through the document by scrolling through the sections or using the table of contents. Each section is clearly labeled and contains detailed subsections for easy reference.

Key Specifications

Exhaust Pipe Diameter

2.25 inches

Catalytic Converter Lifespan

100,000 miles

Muffler Weight

15 lbs

Emission Compliance

EPA Tier 2, CARB LEV II

Exhaust System Material

Stainless Steel

Available Specifications

Exhaust Components

This section details the main components of the Mazda CX-9's exhaust system, including the exhaust manifold, catalytic converter, muffler, and tailpipe. Understanding these parts is crucial for proper maintenance and troubleshooting.

Exhaust Manifold
  • Made of cast iron for durability
  • Collects exhaust gases from the engine cylinders
  • Designed to minimize back pressure
  • Bolted directly to the engine block
Catalytic Converter
  • Reduces harmful emissions by converting pollutants
  • Contains a honeycomb structure coated with precious metals
  • Located between the exhaust manifold and muffler
  • Requires periodic inspection for clogging or damage
Muffler
  • Reduces exhaust noise using sound-dampening materials
  • Constructed from stainless steel for corrosion resistance
  • Includes internal baffles and chambers
  • Mounted underneath the vehicle's rear section

Performance and Efficiency

This section explores how the exhaust system impacts the Mazda CX-9's performance and fuel efficiency. Learn about the design features that enhance engine output and reduce emissions.

Exhaust Flow
  • Optimized pipe diameter for balanced flow and pressure
  • Minimized bends to reduce resistance
  • Designed to maintain consistent exhaust gas velocity
  • Supports efficient engine breathing
Emission Control
  • Complies with EPA and CARB emission standards
  • Incorporates an oxygen sensor for precise fuel mixture control
  • Reduces NOx, CO, and HC emissions
  • Includes a secondary air injection system for cold starts

Maintenance and Troubleshooting

Proper maintenance ensures the longevity and functionality of the exhaust system. This section provides tips for routine checks and common troubleshooting techniques.

Routine Checks
  • Inspect for rust or corrosion on pipes and muffler
  • Check for loose or damaged hangers and brackets
  • Listen for unusual noises like rattling or hissing
  • Monitor for exhaust leaks using a visual and auditory inspection
Common Issues
  • Rust and corrosion due to environmental exposure
  • Cracked or broken exhaust manifold
  • Clogged catalytic converter
  • Muffler damage from road debris or impact

Component Specifications

Overview

Type
Dual exhaust system
Configuration
Rear-mounted
Platform
Mazda CX-9 (2007-2015)
Material
Stainless steel
Location
Underbody, rear section

Dimensions

Overall Length
78.7 inches (200 cm)
Pipe Diameter
2.25 inches (57 mm)
Muffler Length
24.8 inches (63 cm)
Muffler Width
8.7 inches (22 cm)
Muffler Height
6.3 inches (16 cm)
Tailpipe Diameter
3.5 inches (89 mm)
Tailpipe Length
12.6 inches (32 cm)

Materials

Exhaust Pipes
409 stainless steel
Muffler Body
Aluminized steel
Tailpipe
304 stainless steel
Gaskets
Graphite and steel composite
Hangers
Rubber and steel

Features

Performance
  • Optimized flow design
  • Reduced backpressure
  • Enhanced exhaust scavenging
Durability
  • Corrosion-resistant materials
  • Heat-resistant coatings
  • Reinforced hangers
Noise Reduction
  • Tuned muffler design
  • Acoustic dampening layers
  • Resonator integration
Emissions
  • Catalytic converter integration
  • Oxygen sensor compatibility
  • Compliant with EPA standards
Aesthetics
  • Polished tailpipe finish
  • Dual exhaust tips
  • Sleek underbody design

Safety Features

Heat Management
  • Heat shields for underbody protection
  • Thermal insulation for sensitive components
Structural integrity
  • Reinforced mounting points
  • Vibration-resistant hangers
Emissions Control
  • Catalytic converter for harmful gas reduction
  • Oxygen sensors for optimal fuel-air mixture

Comfort Features

Noise Level
Reduced cabin noise to 65 dB at highway speeds
Vibration Control
Rubber hangers for minimal vibration transfer
Heat Dissipation
Efficient heat dispersion away from cabin
installation
Factory-fit design for easy installation

Accessories

Upgrades
  • Performance exhaust kits
  • Stainless steel tips
  • High-flow catalytic converters
Maintenance Tools
  • Exhaust hanger removal tool
  • Gasket replacement kit
  • Pipe expander tool
Protection
  • Underbody heat shields
  • Anti-corrosion spray
  • Exhaust wrap insulation

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for leaks or cracks
  • Check hangers and mounts
  • Clean tailpipe and tips
  • Inspect catalytic converter
  • Test oxygen sensors
Maintenance Notes
Regular inspection recommended for rust-prone areas

Warranty

Manufacturer Warranty
Miles: 60,000 miles
Years: 5 years
Coverage: Defects in materials and workmanship
Corrosion Warranty
Miles: 100,000 miles
Years: 10 years
Coverage: Perforation due to rust
Performance Warranty
Miles: 50,000 miles
Years: 3 years
Coverage: Maintains specified flow and noise levels
Terms
Warranty void if aftermarket modifications are made

Production Details

Manufacturer
Mazda Motor Corporation
Manufacturing Process
  • Laser-cut pipe sections
  • Robotic welding for precision
  • Pressure testing for leaks
Quality Control
inspection: 100% visual and pressure testing
Tolerances: ±0.5 mm for pipe alignment
Testing: Thermal cycling and vibration tests
Sustainability Practices
  • Recycled stainless steel usage
  • Low-emission manufacturing
  • Waste material recycling
Production Metrics
Annual Output: 150,000 units
Defect Rate: Less than 0.1%
Lead Time: 2 weeks from order to shipment

Service Information for exhaust Service

Maintenance and service requirements specific to this component

30,000 miles
24 months
  • Inspect exhaust system for leaks
  • Check hangers and mounts for wear
  • Clean tailpipe and tips
  • Inspect catalytic converter for damage
  • Test oxygen sensor functionality

Ensure proper torque on all bolts during inspection

60,000 miles
48 months
  • Replace exhaust gaskets
  • Inspect and clean heat shields
  • Check for corrosion on pipes
  • Test exhaust backpressure
  • Inspect resonator and muffler internals

Use anti-seize compound on bolts during reassembly

100,000 miles
84 months
  • Replace oxygen sensors
  • Inspect and replace catalytic converter if needed
  • Check entire system for alignment
  • Perform full exhaust pressure test
  • Replace worn hangers and mounts

Major service may require specialized tools for catalytic converter replacement

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the exhaust system compatible with both 2WD and AWD models of the 2007-2015 Mazda CX-9?

The exhaust system for the 2007-2015 Mazda CX-9 is designed to be compatible with both 2WD and AWD models. However, slight variations may exist in the routing of the exhaust pipes due to differences in the drivetrain layout. Always verify the specific part number and fitment details with the manufacturer or supplier to ensure compatibility with your vehicle's configuration.

Q2

What maintenance is required for the exhaust system of a 2007-2015 Mazda CX-9?

Regular maintenance for the exhaust system includes inspecting for rust, corrosion, or physical damage, checking for leaks at joints and connections, and ensuring the hangers and mounts are secure. It is recommended to inspect the exhaust system every 12,000 miles or annually. Replace worn-out components, such as gaskets or mufflers, promptly to maintain optimal performance and prevent further damage.

Q3

How do I replace the exhaust system on a 2007-2015 Mazda CX-9?

To 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, unbolting the connections, and carefully lowering it. Install the new system by aligning it with the hangers and tightening all bolts to the manufacturer's torque specifications. Ensure proper sealing at joints using new gaskets or exhaust sealant.

Q4

What should I do if my Mazda CX-9 exhaust system is making unusual noises?

Unusual noises from the exhaust system, such as rattling or hissing, may indicate loose components, leaks, or damaged parts. Inspect the system for loose hangers, cracked pipes, or holes in the muffler. Tighten or replace any faulty parts. If the issue persists, consult a professional mechanic to diagnose and resolve the problem, as it could affect emissions and performance.

Q5

How can I optimize the performance of my Mazda CX-9 exhaust system?

To optimize performance, consider upgrading to a high-flow catalytic converter or performance muffler, which can improve exhaust flow and engine efficiency. Ensure the system is free of leaks and blockages. Regularly clean and inspect the exhaust components to prevent corrosion. Avoid excessive idling, as it can lead to carbon buildup and reduce system efficiency over time.

Factory Service Resources

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

2007-2015 Mazda CX-9 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for the Mazda CX-9, including detailed exhaust system information.

Mazda CX-9 Exhaust System Technical Bulletin

Coming Soon

Technical service bulletin addressing common exhaust system issues, updates, and recommended solutions for the 2007-2015 models.

Mazda CX-9 Exhaust Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket exhaust components, including mufflers, pipes, and gaskets, for the 2007-2015 Mazda CX-9.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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