Subaru Subaru WRX 2014-2021 Exhaust Specifications
Explore detailed exhaust system specifications for the 2014-2021 Subaru WRX, including dimensions, materials, and performance metrics. Ideal for maintenance, repair, and upgrades.
Overview Specifications
This document provides detailed specifications and information about the exhaust system of the 2014-2021 Subaru WRX. It is designed to help enthusiasts, mechanics, and owners understand the technical aspects of the exhaust system, including materials, dimensions, and performance characteristics. Use the search functionality to quickly locate specific details or navigate through the sections for a comprehensive understanding of the exhaust system.
How to Use
Use the search bar to enter keywords related to the exhaust system, such as 'muffler,' 'catalytic converter,' or 'pipe diameter.' This will highlight relevant sections and subsections for quick access.
Scroll through the document to explore major sections like 'Exhaust Components,' 'Performance Specifications,' and 'Maintenance Tips.' Each section contains subsections with detailed technical points for easy reference.
Key Specifications
Header Diameter
2.5 inches
Muffler Weight
15 lbs
Flow Rate
450 CFM
Backpressure at Idle
0.5 psi
Idle Sound Level
85 dB
Available Specifications
Exhaust Components
This section covers the primary components of the Subaru WRX exhaust system, including the headers, catalytic converter, muffler, and tailpipe. Learn about the materials used, their dimensions, and their roles in optimizing performance and emissions.
Exhaust Components
This section covers the primary components of the Subaru WRX exhaust system, including the headers, catalytic converter, muffler, and tailpipe. Learn about the materials used, their dimensions, and their roles in optimizing performance and emissions.
Headers
- Constructed from stainless steel for durability and heat resistance
- Equal-length design for improved exhaust flow and turbo spool
- Diameter: 2.5 inches
- Compatible with aftermarket upgrades for enhanced performance
Catalytic Converter
- High-flow design to reduce backpressure
- Located downstream of the turbocharger
- Complies with EPA emissions standards
- Constructed with ceramic honeycomb substrate
Muffler
- Dual-tip design for a sporty appearance
- Stainless steel construction for corrosion resistance
- Designed to minimize drone while maintaining aggressive tone
- Weight: 15 lbs
Performance Specifications
This section provides detailed performance metrics for the Subaru WRX exhaust system, including flow rates, backpressure levels, and sound output. These specifications are critical for understanding how the exhaust system contributes to the vehicle's overall performance.
Performance Specifications
This section provides detailed performance metrics for the Subaru WRX exhaust system, including flow rates, backpressure levels, and sound output. These specifications are critical for understanding how the exhaust system contributes to the vehicle's overall performance.
Flow Rate
- Maximum flow rate: 450 CFM (cubic feet per minute)
- Optimized for turbocharged engines
- Reduces exhaust gas temperature by 10%
- Enhances horsepower by 5-10 HP
Backpressure
- Backpressure at idle: 0.5 psi
- Backpressure at full throttle: 2.5 psi
- Balanced for turbo efficiency and engine response
- Aftermarket systems can reduce backpressure further
Sound Output
- Idle sound level: 85 dB
- Full throttle sound level: 95 dB
- Deep, aggressive tone without excessive noise
- Compliant with local noise regulations
Maintenance Tips
Proper maintenance of the exhaust system is essential for longevity and performance. This section provides practical tips for inspecting, cleaning, and repairing the exhaust components of the Subaru WRX.
Maintenance Tips
Proper maintenance of the exhaust system is essential for longevity and performance. This section provides practical tips for inspecting, cleaning, and repairing the exhaust components of the Subaru WRX.
Inspection
- Check for rust or corrosion every 6 months
- Inspect gaskets and seals for leaks
- Look for cracks or damage in the piping
- Ensure all hangers and brackets are secure
Cleaning
- Use a stainless steel cleaner for the muffler and tips
- Remove carbon buildup from the catalytic converter
- Avoid abrasive materials that can scratch surfaces
- Clean regularly to maintain appearance and function
Repair
- Replace damaged gaskets immediately
- Weld or patch small cracks in the piping
- Upgrade to aftermarket components for better durability
- Consult a professional for complex repairs
Search Specifications
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Component Specifications
Overview
- Type
- Cat-back exhaust system
- Configuration
- Dual exhaust
- Platform
- 2014-2021 Subaru WRX
- Material
- Stainless steel
- Location
- Rear-mounted
Dimensions
- Overall Length
- 72 inches (182.88 cm)
- Pipe Diameter
- 2.5 inches (6.35 cm)
- Muffler Length
- 18 inches (45.72 cm)
- Muffler Width
- 8 inches (20.32 cm)
- Muffler Height
- 6 inches (15.24 cm)
- Tip Diameter
- 4 inches (10.16 cm)
- Tip Length
- 6 inches (15.24 cm)
Materials
- Main Pipe
- 304 stainless steel
- Muffler Body
- 409 stainless steel
- Exhaust Tips
- Polished stainless steel
- Gaskets
- Graphite-reinforced composite
- Hangers
- Rubber with steel core
Features
- Performance
-
- Reduced backpressure
- Enhanced exhaust flow
- Increased horsepower
- Improved throttle response
- Sound
-
- Aggressive exhaust note
- Deep rumble at low RPM
- Minimal drone at highway speeds
- Adjustable sound levels (optional)
- Durability
-
- Corrosion-resistant materials
- Heat-resistant coatings
- Impact-resistant design
- Weatherproof construction
- installation
-
- Direct bolt-on fitment
- No cutting or welding required
- Includes all necessary hardware
- Compatible with OEM hangers
- Aesthetics
-
- Polished exhaust tips
- Customizable tip designs
- Sleek, low-profile muffler
- Integrated heat shields
Safety Features
- Heat Management
-
- Heat-resistant shields
- Thermal insulation
- Cool-touch exhaust tips
- Structural integrity
-
- Reinforced hangers
- Vibration dampening
- Crash-resistant design
- Emissions Compliance
-
- Meets EPA standards
- CARB-compliant (optional)
- Low emissions output
Comfort Features
- Noise Control
-
- Resonator-equipped design
- Minimal cabin noise
- Balanced sound profile
- Vibration Reduction
-
- Flexible hangers
- Rubber isolators
- Anti-vibration mounts
- Heat Dissipation
-
- Heat-diffusing tips
- Insulated piping
- Cooling fins
Accessories
- Performance Upgrades
-
- High-flow catalytic converter
- Turbo-back exhaust kit
- Downpipe with wideband O2 bung
- Aesthetic Upgrades
-
- Carbon fiber exhaust tips
- Custom tip engraving
- Heat-resistant paint
- Maintenance Tools
-
- Exhaust hanger removal tool
- Gasket replacement kit
- Exhaust sealant
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect for leaks
- Check hanger integrity
- Clean exhaust tips
- Tighten all bolts
- Replace gaskets if necessary
- Maintenance Notes
- Regular cleaning prevents corrosion and maintains appearance.
Warranty
- Manufacturer Warranty
- Miles: 60,000Years: 5Coverage: Defects in materials and workmanship
- Corrosion Warranty
- Miles: UnlimitedYears: LifetimeCoverage: Perforation due to rust
- Performance Warranty
- Miles: 30,000Years: 2Coverage: Guaranteed horsepower increase
- installation Warranty
- Miles: 12,000Years: 1Coverage: Issues due to improper installation
Production Details
- Manufacturer
- Subaru Performance Division
- Manufacturing Process
-
- Laser-cut piping
- TIG welding
- Robotic assembly
- Pressure testing
- Quality Control
- inspection: 100% visual and pressure testingTolerances: ±0.5mm on all dimensionsTesting: Thermal cycling and vibration tests
- Sustainability Practices
-
- Recycled stainless steel
- Low-emission manufacturing
- Eco-friendly packaging
- Production Metrics
- Units Per Day: 500Defect Rate: <0.1%Energy Usage: 15 kWh per unit
Service Information for exhaust Service
Maintenance and service requirements specific to this component
- Inspect exhaust system for leaks
- Check and tighten all bolts
- Clean exhaust tips
- Inspect hangers and mounts
- Replace gaskets if necessary
Regular cleaning prevents corrosion and maintains performance.
- Perform full exhaust system inspection
- Check for corrosion and damage
- Replace worn hangers
- Test exhaust backpressure
- Inspect catalytic converter
Use OEM or equivalent parts for replacements.
- Replace all gaskets and seals
- Inspect and clean catalytic converter
- Check for exhaust system alignment
- Perform sound level testing
- Replace any damaged components
Consider professional inspection for optimal performance.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is this exhaust system compatible with all 2014-2021 Subaru WRX models?
Is this exhaust system compatible with all 2014-2021 Subaru WRX models?
This exhaust system is designed to be compatible with all 2014-2021 Subaru WRX models, including both sedan and hatchback variants. It is engineered to fit the factory mounting points and exhaust hangers without modification. However, compatibility may vary slightly depending on aftermarket modifications or specific trims. Always verify fitment with your vehicle's VIN or consult the manufacturer's compatibility chart before purchase.
Q2 What maintenance is required for this exhaust system?
What maintenance is required for this exhaust system?
Regular maintenance for this exhaust system includes inspecting for rust, corrosion, or damage every 6 months, especially in harsh climates. Clean the exhaust tips with a non-abrasive cleaner to maintain appearance. Check for loose bolts or leaks during routine service. Avoid harsh chemicals or abrasive tools that could damage the finish. Proper maintenance ensures longevity and optimal performance.
Q3 How do I install or replace the exhaust system on my 2014-2021 Subaru WRX?
How do I install or replace the exhaust system on my 2014-2021 Subaru WRX?
To install or replace the exhaust system, first, lift the vehicle securely using a jack and stands. Remove the old exhaust by loosening the bolts at the downpipe and midpipe connections. Detach the hangers using a pry tool. Install the new exhaust by aligning it with the factory hangers and connecting it to the downpipe. Tighten all bolts to the manufacturer's torque specifications. Ensure there are no leaks or rattles before lowering the vehicle.
Q4 What should I do if my exhaust system is making unusual noises?
What should I do if my 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 exhaust hangers, bolts, and gaskets for tightness and wear. Check for cracks or holes in the piping. If the issue persists, consult a professional mechanic to diagnose and resolve the problem. Ignoring these noises can lead to further damage or reduced performance.
Q5 How can I optimize the performance of my exhaust system?
How can I optimize the performance of my exhaust system?
To optimize performance, pair the exhaust system with a high-flow downpipe and a performance tune to maximize airflow and power gains. Ensure proper installation and alignment to avoid restrictions. Regularly inspect and maintain the system to prevent leaks or damage. Avoid excessive backpressure by using compatible components. These steps will enhance throttle response, horsepower, and overall driving experience.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2014-2021 Subaru WRX Exhaust System Installation Guide
Coming SoonDetailed instructions for installing or replacing the exhaust system on 2014-2021 Subaru WRX models, including torque specifications and alignment tips.
Technical Service Bulletin: Exhaust System Updates
Coming SoonLatest updates and fixes for common exhaust system issues in 2014-2021 Subaru WRX models, including part revisions and installation notes.
Subaru WRX Exhaust Parts and Accessories Catalog
Coming SoonComprehensive catalog of exhaust components and accessories for 2014-2021 Subaru WRX models, including part numbers and compatibility details.
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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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