Subaru Subaru Legacy 2010-2014 Exhaust Specifications
Subaru Subaru Legacy 2010-2014

Subaru Subaru Legacy 2010-2014 Exhaust Specifications

Explore detailed exhaust system specifications for the 2010-2014 Subaru Legacy, including catalytic converter, muffler, and exhaust pipe details. Ideal for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the exhaust system for the 2010-2014 Subaru Legacy. It is designed to assist users in understanding the components, materials, and performance characteristics of the exhaust system. Use the search and navigation instructions to quickly locate specific details or browse through the sections for a comprehensive overview.

How to Use

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

Navigate through the document by scrolling through the sections or using the table of contents. Each section is organized into subsections, making it easy to find detailed information about specific parts of the exhaust system.

Key Specifications

Exhaust Pipe Diameter

2.25 inches

Catalytic Converter Efficiency

95% reduction in emissions

Muffler Noise Level

75-80 dB

Exhaust System Weight

45-50 lbs

Material

Stainless steel

Available Specifications

Exhaust System Components

This section covers the primary components of the exhaust system, including the exhaust manifold, catalytic converter, muffler, and tailpipe. Learn about the materials used, their functions, and how they contribute to the overall performance of the vehicle.

Exhaust Manifold
  • Made of cast iron or stainless steel for durability
  • Collects exhaust gases from the engine cylinders
  • Designed to minimize backpressure
  • Includes heat shields to protect surrounding components
Catalytic Converter
  • Reduces harmful emissions by converting pollutants
  • Contains a ceramic or metallic catalyst substrate
  • Oxygen sensors monitor efficiency
  • Complies with EPA and CARB regulations
Muffler
  • Constructed from aluminized steel for corrosion resistance
  • Reduces exhaust noise through sound-dampening chambers
  • Includes internal baffles for optimal airflow
  • Designed to withstand high temperatures

Exhaust System Performance

This section focuses on the performance characteristics of the exhaust system, including airflow efficiency, noise levels, and emission control. Understand how the design and materials impact the vehicle's overall performance.

Airflow Efficiency
  • Optimized pipe diameter for balanced backpressure
  • Smooth bends to reduce turbulence
  • High-flow catalytic converter for improved performance
  • Designed to complement engine output
Noise Levels
  • Muffler design reduces noise to 75-80 decibels
  • Resonators minimize drone at highway speeds
  • Sound tuning for a sporty yet refined tone
  • Complies with local noise regulations

Maintenance and Durability

Learn about the maintenance requirements and durability of the exhaust system. This section provides tips for inspection, common issues, and how to extend the lifespan of the components.

Inspection Tips
  • Check for rust or corrosion every 12 months
  • Inspect gaskets and seals for leaks
  • Listen for unusual noises during operation
  • Verify oxygen sensor functionality
Common Issues
  • Rust due to road salt and moisture
  • Cracked exhaust manifolds from thermal stress
  • Clogged catalytic converter from oil or coolant contamination
  • Loose or damaged hangers causing rattling
Lifespan Extension
  • Use high-quality replacement parts
  • Apply anti-corrosion coatings
  • Avoid short trips to prevent moisture buildup
  • Regularly clean the exterior of components

Component Specifications

Overview

Type
Dual Exhaust System
Configuration
Rear Exit
Platform
Subaru Legacy 2010-2014
Material
Stainless Steel
Location
Underbody

Dimensions

Total Length
72 inches / 182.88 cm
Pipe Diameter
2.25 inches / 5.715 cm
Muffler Length
24 inches / 60.96 cm
Muffler Width
8 inches / 20.32 cm
Muffler Height
6 inches / 15.24 cm
Tailpipe Diameter
3 inches / 7.62 cm
Tailpipe Length
12 inches / 30.48 cm

Materials

Pipes
Stainless Steel
Muffler
Aluminized Steel
Catalytic Converter
Ceramic Substrate
Gaskets
Graphite
Hangers
Rubber

Features

Performance
  • Optimized airflow
  • Reduced backpressure
  • Enhanced engine efficiency
Durability
  • Corrosion-resistant materials
  • Heat-resistant coatings
  • Reinforced hangers
Noise Reduction
  • Advanced muffler design
  • Sound-dampening materials
  • Precision-engineered baffles
Emissions
  • High-efficiency catalytic converter
  • Oxygen sensor integration
  • Compliance with emissions standards
installation
  • Direct bolt-on design
  • Pre-drilled mounting points
  • Compatibility with OEM components

Safety Features

Heat Protection
  • Heat shields
  • Insulated piping
Structural integrity
  • Reinforced welds
  • Impact-resistant materials
Emissions
  • Low CO2 emissions
  • Catalytic converter efficiency

Comfort Features

Noise Level
75 dB at idle
Vibration
Minimized through flexible mounts
Heat Management
Effective heat dissipation
Aesthetics
Polished stainless steel finish

Accessories

Performance
  • Performance muffler
  • High-flow catalytic converter
  • Custom tailpipes
Maintenance
  • Exhaust hangers
  • Gasket kits
  • Oxygen sensors
Aesthetic
  • Chrome tips
  • Carbon fiber wraps
  • Custom exhaust covers

Maintenance

Service interval
Every 50,000 miles / 5 years
Service Items
  • Inspect for leaks
  • Check hangers and mounts
  • Clean exhaust tips
  • Inspect catalytic converter
  • Replace gaskets if worn
Maintenance Notes
Regular inspection recommended for rust and corrosion

Warranty

Parts
5 years / 60,000 miles
Labor
2 years / 24,000 miles
Corrosion
10 years / unlimited miles
Performance
3 years / 36,000 miles
Terms
Warranty covers manufacturing defects only

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Laser cutting
  • Robotic welding
  • Heat treatment
Quality Control
inspection: 100% visual inspection
Testing: Pressure and leak testing
Standards: ISO 9001 certified
Sustainability Practices
  • Recycled materials
  • Low-emission manufacturing
  • Energy-efficient processes
Production Metrics
Daily Output: 500 units
Defect Rate: Less than 0.5%

Service Information for exhaust Service

Maintenance and service requirements specific to this component

30,000 miles
36 months
  • Inspect exhaust system for leaks
  • Check hangers and mounts
  • Clean exhaust tips
  • Inspect catalytic converter

Early detection of leaks can prevent costly repairs

60,000 miles
72 months
  • Replace exhaust gaskets
  • Inspect and clean oxygen sensors
  • Check for rust and corrosion
  • Tighten all bolts and clamps

Use torque wrench for proper tightening

100,000 miles
120 months
  • Replace catalytic converter if needed
  • Inspect and replace hangers
  • Check muffler for damage
  • Perform full system pressure test

Major service may require professional tools

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is this exhaust system compatible with all 2010-2014 Subaru Legacy models?

This exhaust system is designed to be compatible with most 2010-2014 Subaru Legacy models, including both 2.5i and 3.6R trims. However, it is essential to verify the specific model and trim level before purchase. The system is engineered to fit factory mounting points and aligns with OEM specifications. For turbocharged models or vehicles with aftermarket modifications, additional compatibility checks are recommended.

Q2

What maintenance is required for the exhaust system?

Regular maintenance for the exhaust system includes inspecting for rust, corrosion, and physical damage every 6 months or 6,000 miles. Ensure all connections and hangers are secure. Cleaning the exterior with a mild detergent can prevent buildup. For optimal performance, check for leaks and replace gaskets as needed. Avoid harsh chemicals that may damage the finish. Proper maintenance ensures longevity and performance.

Q3

How do I install or replace the exhaust system on my Subaru Legacy?

To install or replace the exhaust system, first, safely lift the vehicle using a jack stand. Remove the old exhaust by loosening clamps and bolts, starting from the muffler and moving toward the front. Align the new exhaust system, ensuring proper fitment with factory mounting points. Secure all connections with new gaskets and tighten bolts to the recommended torque. Inspect 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 may indicate loose components, leaks, or damaged parts. Inspect all connections, hangers, and gaskets for wear or misalignment. Check for holes or cracks in the piping. Tighten loose bolts and replace damaged parts as needed. If the issue persists, consult a professional mechanic to diagnose and resolve the problem.

Q5

How can I optimize the performance of my exhaust system?

To optimize performance, ensure the exhaust system is properly installed and free of leaks. Use high-quality gaskets and hardware. Consider upgrading to a performance exhaust with larger piping or mandrel bends for improved airflow. Regularly maintain the system to prevent buildup and corrosion. Pairing the exhaust with a tuned intake system can further enhance 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.

2010-2014 Subaru Legacy Service Manual

Coming Soon

This comprehensive manual provides detailed instructions for servicing and maintaining the Subaru Legacy, including exhaust system procedures.

Technical Service Bulletin: Exhaust System Updates

Coming Soon

This bulletin outlines updates and recommendations for the 2010-2014 Subaru Legacy exhaust system, including performance and maintenance tips.

Subaru Legacy Parts and Accessories Catalog

Coming Soon

This catalog provides a detailed list of OEM and aftermarket parts and accessories for the 2010-2014 Subaru Legacy, including exhaust components.

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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