Subaru Subaru Legacy 2020-present Exhaust Specifications
Explore the detailed exhaust system specifications for the 2020-Present Subaru Legacy. Learn about pipe diameters, muffler configurations, catalytic converters, and emission standards. Essential for maintenance, repair, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the exhaust system of the 2020-Present Subaru Legacy. It is designed to assist users in understanding the components, performance, and maintenance of the exhaust system. Use the search functionality to quickly locate specific details or navigate through the sections for a comprehensive overview.
How to Use
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Key Specifications
Exhaust Diameter
2.25 inches
Muffler Weight
12.5 lbs
Flow Rate
450 CFM
Backpressure
<2.5 psi
Idle Noise
45 dB
Available Specifications
Exhaust System Components
This section outlines the key components of the Subaru Legacy's exhaust system, including the muffler, catalytic converter, and exhaust pipes. It provides technical details about each part and its role in the overall system.
Exhaust System Components
This section outlines the key components of the Subaru Legacy's exhaust system, including the muffler, catalytic converter, and exhaust pipes. It provides technical details about each part and its role in the overall system.
Muffler
- Dual-tip stainless steel design
- Reduces exhaust noise by up to 50%
- Integrated resonator for smoother sound
- Corrosion-resistant coating
- Weight: 12.5 lbs
- Compatible with 2.5L and 3.6L engines
Catalytic Converter
- High-efficiency three-way catalyst
- Reduces harmful emissions by up to 90%
- Oxygen sensor integration
- Heat-resistant ceramic substrate
- Complies with EPA and CARB standards
- Replacement interval: 100,000 miles
Exhaust Pipes
- 2.25-inch diameter for optimal flow
- Mandrel-bent construction
- Stainless steel material
- Heat shields for thermal protection
- Prevents backpressure buildup
- Designed for minimal vibration
Performance Specifications
This section covers the performance metrics of the exhaust system, including flow rates, backpressure, and noise levels. It also highlights the impact of the exhaust system on engine efficiency and power output.
Performance Specifications
This section covers the performance metrics of the exhaust system, including flow rates, backpressure, and noise levels. It also highlights the impact of the exhaust system on engine efficiency and power output.
Flow Rate
- Maximum flow rate: 450 CFM
- Optimized for turbocharged models
- Reduces exhaust gas temperature
- Enhances engine breathing
- Supports up to 300 HP
- Tested at 6,000 RPM
Backpressure
- Backpressure maintained below 2.5 psi
- Balanced for performance and efficiency
- Minimizes power loss
- Supports smooth throttle response
- Engineered for low-end torque
- Tested under load conditions
Noise Levels
- Idle noise: 45 dB
- Cruising noise: 65 dB
- WOT (Wide Open Throttle) noise: 85 dB
- Sound-dampening technology
- Complies with noise regulations
- Tuned for sporty yet refined sound
Maintenance and Care
This section provides guidelines for maintaining the exhaust system, including inspection intervals, cleaning tips, and common issues to watch for. Proper maintenance ensures longevity and optimal performance.
Maintenance and Care
This section provides guidelines for maintaining the exhaust system, including inspection intervals, cleaning tips, and common issues to watch for. Proper maintenance ensures longevity and optimal performance.
Inspection Intervals
- Inspect every 15,000 miles
- Check for rust and corrosion
- Verify mounting brackets
- Inspect gaskets and seals
- Look for exhaust leaks
- Monitor oxygen sensor performance
Cleaning Tips
- Use mild soap and water for cleaning
- Avoid abrasive cleaners
- Polish stainless steel tips regularly
- Remove carbon buildup
- Check for debris in exhaust pipes
- Dry thoroughly after cleaning
Common Issues
- Rust in high-humidity areas
- Cracked exhaust manifolds
- Failed catalytic converters
- Loose or damaged heat shields
- Excessive noise or vibration
- Check engine light due to O2 sensor failure
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Component Specifications
Overview
- Type
- Dual exhaust system
- Configuration
- Single exit per side
- Platform
- Subaru Global Platform
- Material
- Stainless steel
- Location
- Rear underbody
Dimensions
- Pipe Diameter
- 2.5 inches (63.5 mm)
- Tailpipe Length
- 18 inches (457.2 mm)
- Muffler Length
- 24 inches (609.6 mm)
- Catalytic Converter Length
- 12 inches (304.8 mm)
- Overall System Length
- 96 inches (2438.4 mm)
- Ground Clearance
- 6.5 inches (165.1 mm)
- Weight
- 45 lbs (20.4 kg)
Materials
- Exhaust Pipes
- 409 stainless steel
- Muffler
- Aluminized steel
- Catalytic Converter
- Ceramic substrate with stainless steel housing
- Tailpipe
- Polished stainless steel
- Gaskets
- Graphite and stainless steel
Features
- Performance
-
- Optimized flow design
- Reduced back pressure
- Enhanced exhaust scavenging
- Improved horsepower and torque
- Acoustics
-
- Tuned muffler for sporty sound
- Resonance control
- Noise cancellation technology
- Quiet cabin experience
- Durability
-
- Corrosion-resistant materials
- Heat-resistant coatings
- Vibration dampening
- Impact-resistant design
- Emissions
-
- Low-emission catalytic converter
- Oxygen sensor integration
- Compliant with EPA standards
- Reduced carbon footprint
- Aesthetics
-
- Polished tailpipe finish
- Integrated rear diffuser design
- Brand-specific exhaust tips
- Sleek underbody profile
Safety Features
- Heat Management
-
- Heat shields for underbody protection
- Thermal insulation for nearby components
- Structural integrity
-
- Reinforced hangers
- Crash-resistant design
- Emission Control
-
- Catalytic converter efficiency monitoring
- Oxygen sensor fail-safe
Comfort Features
- Noise Reduction
-
- Acoustic dampening materials
- Resonance-free design
- Vibration Control
-
- Flexible exhaust hangers
- Vibration-absorbing mounts
- Thermal Management
-
- Heat dissipation design
- Underbody airflow optimization
Accessories
- Performance Upgrades
-
- High-flow catalytic converter
- Sport exhaust system
- Aftermarket mufflers
- Exhaust tip covers
- Maintenance Tools
-
- Exhaust hanger removal tool
- Oxygen sensor socket
- Exhaust sealant
- Heat shield repair kit
- Protection
-
- Exhaust wrap
- Underbody coating
- Rust inhibitor spray
- Heat shield guards
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect exhaust system for leaks
- Check hangers and mounts
- Inspect catalytic converter
- Test oxygen sensors
- Clean and polish tailpipes
- Check heat shields
- Maintenance Notes
- Regular inspection recommended for rust-prone areas
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Manufacturing defects
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Catalytic converter and oxygen sensors
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Perforation due to rust
- Extended Warranty
- Miles: 100,000Years: 7Coverage: Optional extended coverage
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Laser cutting of components
- Robotic welding
- Automated assembly
- Quality control testing
- Quality Control
- Pressure Testing: 100% of units testedLeak Detection: Ultrasonic testingMaterial inspection: X-ray and chemical analysis
- Sustainability Practices
-
- Recycled materials in production
- Low-emission manufacturing
- Waste reduction initiatives
- Production Metrics
- Annual Production: 150,000 unitsDefect Rate: 0.05%Energy Efficiency: 15% improvement over previous model
Service Information for exhaust Service
Maintenance and service requirements specific to this component
- Inspect exhaust system for leaks
- Check hangers and mounts
- Inspect catalytic converter
- Test oxygen sensors
- Clean and polish tailpipes
Ensure proper torque on all connections
- Replace exhaust gaskets
- Inspect heat shields
- Check for corrosion
- Test exhaust back pressure
- Verify emission levels
Use OEM parts for replacements
- Replace catalytic converter if needed
- Inspect entire exhaust system
- Check for structural integrity
- Replace oxygen sensors
- Perform emission system test
Major service may require specialized tools
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the exhaust system compatible with all 2020-Present Subaru Legacy models?
Is the exhaust system compatible with all 2020-Present Subaru Legacy models?
The exhaust system is designed to be compatible with all 2020-Present Subaru Legacy models, including both 2.5L and 2.4L turbocharged engines. However, specific trims or configurations may require slight modifications. Always verify compatibility using your vehicle's VIN or consult with a Subaru dealer to ensure proper fitment and performance.
Q2 What maintenance is required for the Subaru Legacy exhaust system?
What maintenance is required for the Subaru Legacy exhaust system?
Regular maintenance for the exhaust system includes inspecting for rust, cracks, or leaks every 12,000 miles. Ensure all connections and hangers are secure. Cleaning the exhaust tips and checking the catalytic converter for blockages is also recommended. Follow the Subaru maintenance schedule for optimal performance and longevity.
Q3 How do I install or replace the exhaust system on a Subaru Legacy?
How do I install or replace the exhaust system on a Subaru Legacy?
To install or replace the exhaust system, first, lift the vehicle securely. Remove the old exhaust by loosening clamps and hangers. Align the new exhaust system, ensuring proper fitment, and secure it with new clamps and hangers. Tighten all connections and check for leaks. Refer to the service manual for torque specifications and detailed instructions.
Q4 What should I do if my Subaru Legacy exhaust system is making unusual noises?
What should I do if my Subaru Legacy exhaust system is making unusual noises?
Unusual noises may indicate loose components, leaks, or damaged parts. Inspect the exhaust system for loose clamps, hangers, or holes. Tighten or replace as necessary. If the issue persists, check the catalytic converter and muffler for internal damage. Consult a professional mechanic for a thorough diagnosis and repair.
Q5 How can I optimize the performance of my Subaru Legacy exhaust system?
How can I optimize the performance of my Subaru Legacy 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 properly aligned. Regularly clean the exhaust tips and inspect for damage. Pairing the exhaust system with a tuned ECU can further enhance performance and fuel efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Subaru Legacy Exhaust System Service Manual
Coming SoonDetailed instructions for installation, maintenance, and troubleshooting of the exhaust system for 2020-Present Subaru Legacy models.
Technical Service Bulletin: Exhaust System Updates
Coming SoonLatest updates and fixes for the exhaust system, including compatibility and performance enhancements for 2020-Present Subaru Legacy models.
Subaru Legacy Exhaust Parts Catalog
Coming SoonComprehensive catalog of exhaust system components, including OEM and aftermarket options for 2020-Present Subaru Legacy models.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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