Subaru Subaru WRX 1992-2001 Exhaust Specifications
Explore detailed exhaust system specifications for the 1992-2001 Subaru WRX, including dimensions, materials, and compatibility. Ideal for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the exhaust system of the 1992-2001 Subaru WRX. It is designed to assist enthusiasts, mechanics, and researchers in understanding the components, performance characteristics, and maintenance requirements of the exhaust system. Use the search and navigation instructions to quickly locate specific details or browse through the sections for a comprehensive understanding.
How to Use
Use the search functionality to find specific terms or components within the document. Enter keywords like 'catalytic converter' or 'muffler' to jump directly to relevant sections.
Navigate through the document by scrolling through the sections or using the table of contents. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Exhaust Diameter
2.25 inches
Catalytic Converter Type
Ceramic honeycomb
Muffler Material
Stainless steel
Oxygen Sensor Ports
2
Weight
Approx. 45 lbs
Available Specifications
Exhaust System Components
This section covers the primary components of the 1992-2001 Subaru WRX exhaust system, including the headers, catalytic converter, mid-pipe, and muffler. Learn about the materials, design, and function of each part.
Exhaust System Components
This section covers the primary components of the 1992-2001 Subaru WRX exhaust system, including the headers, catalytic converter, mid-pipe, and muffler. Learn about the materials, design, and function of each part.
Headers
- Constructed from stainless steel for durability and heat resistance
- Equal-length design for improved exhaust flow and performance
- 4-2-1 configuration for optimal torque and power delivery
- Heat shields included to reduce underhood temperatures
Catalytic Converter
- Located in the mid-section of the exhaust system
- Designed to reduce harmful emissions (CO, NOx, and hydrocarbons)
- Ceramic honeycomb substrate for efficient gas conversion
- Oxygen sensor ports for monitoring exhaust composition
Muffler
- Chambered design for noise reduction without significant flow restriction
- Stainless steel construction for corrosion resistance
- Dual-tip exhaust outlet for a sporty appearance
- Bolted connection for easy replacement or upgrades
Performance Characteristics
Explore the performance aspects of the exhaust system, including flow efficiency, backpressure, and sound output. This section highlights how the design impacts the vehicle's power and driving experience.
Performance Characteristics
Explore the performance aspects of the exhaust system, including flow efficiency, backpressure, and sound output. This section highlights how the design impacts the vehicle's power and driving experience.
Flow Efficiency
- Optimized pipe diameter (2.25 inches) for balanced flow and backpressure
- Smooth mandrel bends to minimize turbulence
- High-flow catalytic converter for reduced restriction
- Designed to complement turbocharged engine performance
Sound Output
- Aggressive yet refined exhaust note under acceleration
- Quiet at idle for daily driving comfort
- Resonator included to reduce drone at highway speeds
- Aftermarket options available for louder or quieter tones
Maintenance and Upgrades
This section provides guidance on maintaining the exhaust system and popular upgrade options. Learn about common issues, replacement intervals, and performance-enhancing modifications.
Maintenance and Upgrades
This section provides guidance on maintaining the exhaust system and popular upgrade options. Learn about common issues, replacement intervals, and performance-enhancing modifications.
Maintenance Tips
- Inspect for rust and corrosion every 12 months
- Check gaskets and seals for leaks during routine service
- Replace oxygen sensors every 60,000-100,000 miles
- Clean exhaust tips regularly to maintain appearance
Upgrade Options
- Aftermarket headers for increased power and torque
- High-flow catalytic converters for improved emissions and performance
- Cat-back exhaust systems for enhanced sound and flow
- Lightweight titanium mufflers for reduced weight
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Component Specifications
Overview
- Type
- Performance Exhaust System
- Configuration
- Dual-Pipe
- Platform
- 1992-2001 Subaru WRX
- Material
- Stainless Steel
- Location
- Underbody
- Compatibility
- EJ20 Turbocharged Engine
Dimensions
- Pipe Diameter
- 2.5 inches (63.5 mm)
- Overall Length
- 72 inches (1828.8 mm)
- Muffler Length
- 18 inches (457.2 mm)
- Tailpipe Diameter
- 3 inches (76.2 mm)
- Ground Clearance
- 6 inches (152.4 mm)
- Weight
- 22 lbs (9.98 kg)
- Flange Thickness
- 0.25 inches (6.35 mm)
Materials
- Piping
- 304 Stainless Steel
- Muffler
- 409 Stainless Steel
- Flanges
- Carbon Steel
- Gaskets
- Graphite-Impregnated
- Hangers
- Reinforced Rubber
Features
- Performance
-
- Increased exhaust flow
- Reduced backpressure
- Enhanced turbo spool
- Improved horsepower
- Durability
-
- Corrosion-resistant materials
- Reinforced hangers
- High-temperature coatings
- Welded joints
- Sound
-
- Deep exhaust tone
- Adjustable baffles
- Resonator for drone reduction
- Turbo whistle enhancement
- installation
-
- Direct bolt-on design
- Pre-drilled mounting points
- Included hardware kit
- No cutting or welding required
- Aesthetics
-
- Polished stainless steel finish
- Dual-tip design
- Laser-etched branding
- Customizable tip covers
Safety Features
- Heat Management
-
- Heat shields
- Thermal wraps
- High-temperature gaskets
- Structural integrity
-
- Reinforced hangers
- Vibration dampening
- Crash-resistant design
- Emissions Compliance
-
- Catalytic converter compatibility
- O2 sensor bungs
- EPA-compliant design
Comfort Features
- Noise Reduction
-
- Resonator chamber
- Sound-dampening materials
- Adjustable baffles
- Vibration Control
-
- Flexible hangers
- Rubber isolators
- Balanced piping
- Heat Shielding
-
- Underbody heat shields
- Thermal wraps
- Cool-touch tips
Accessories
- installation
-
- Mounting hardware kit
- Gasket set
- Exhaust hangers
- Heat-resistant sealant
- Performance
-
- High-flow catalytic converter
- Turbo-back exhaust kit
- O2 sensor extensions
- Aesthetic
-
- Chrome tip covers
- Carbon fiber tip sleeves
- Custom branding plates
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect for leaks
- Check hanger integrity
- Clean exhaust tips
- Tighten mounting bolts
- Inspect heat shields
- Maintenance Notes
- Avoid harsh chemicals on polished surfaces. Use high-temperature lubricants for bolts.
Warranty
- Materials
- Years: 5Miles: 60000Coverage: Defects in materials
- Workmanship
- Years: 3Miles: 36000Coverage: Manufacturing defects
- Performance
- Years: 2Miles: 24000Coverage: Performance degradation
- Corrosion
- Years: 10Miles: 100000Coverage: Rust-through protection
- Warranty Terms
- Non-transferable. Excludes damage from improper installation or modifications.
Production Details
- Manufacturer
- Subaru Performance Division
- Manufacturing Process
-
- Laser-cut piping
- TIG welding
- CNC-machined flanges
- Robotic assembly
- Quality Control
- Pressure Testing: Up to 50 PSILeak Detection: Helium testingFitment Checks: 3D scanning
- Sustainability Practices
-
- Recycled stainless steel
- Low-emission manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Day: 150Defect Rate: 0.5%Lead Time: 2 weeks
Service Information for Exhaust Service
Maintenance and service requirements specific to the exhaust system
- Inspect exhaust hangers
- Check for leaks at joints
- Clean exhaust tips
- Tighten mounting bolts
- Inspect heat shields
Ensure all bolts are torqued to manufacturer specifications.
- Inspect catalytic converter
- Check O2 sensor functionality
- Inspect muffler internals
- Test exhaust backpressure
- Lubricate hanger points
Use high-temperature lubricant for hanger points.
- Replace exhaust gaskets
- Inspect entire system for corrosion
- Check resonator integrity
- Perform full pressure test
- Replace worn hangers
Consider replacing the entire system if significant corrosion is found.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the exhaust system compatible with all 1992-2001 Subaru WRX models?
Is the exhaust system compatible with all 1992-2001 Subaru WRX models?
The exhaust system is designed to fit all 1992-2001 Subaru WRX models, including both sedan and wagon variants. It is compatible with both turbocharged and non-turbocharged engines. However, minor modifications may be required for specific trims or aftermarket setups. Always verify compatibility with your vehicle's VIN and consult the manufacturer's guidelines before purchase.
Q2 What maintenance is required for the exhaust system?
What maintenance is required for the exhaust system?
Regular maintenance includes inspecting the exhaust system for rust, cracks, or leaks every 6 months. Clean the exhaust tips to prevent buildup and ensure proper airflow. Check gaskets and hangers for wear and replace them as needed. Additionally, monitor the catalytic converter for efficiency and replace it if performance declines. Follow the vehicle's service manual for detailed maintenance intervals.
Q3 How do I install or replace the exhaust system on a 1992-2001 Subaru WRX?
How do I install or replace the exhaust system on a 1992-2001 Subaru WRX?
To install or replace the exhaust system, first, lift the vehicle securely using jack stands. Remove the old exhaust by detaching the bolts at the manifold, catalytic converter, and muffler. Install the new system, starting from the front and working backward, ensuring all connections are tight. Use new gaskets and torque bolts to the manufacturer's specifications. Test for leaks and ensure proper alignment 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, such as rattling or hissing, often indicate loose components, leaks, or damaged parts. Inspect the exhaust hangers, gaskets, and connections for wear or misalignment. Tighten loose bolts and replace damaged gaskets. If the issue persists, check for cracks or holes in the exhaust pipes or muffler. A professional inspection may be necessary for complex issues.
Q5 How can I optimize the performance of my exhaust system?
How can I optimize the performance of my exhaust system?
To optimize performance, consider upgrading to a high-flow catalytic converter and a performance muffler. Ensure the exhaust piping diameter matches your engine's output for optimal airflow. Regularly clean and inspect the system to prevent restrictions. Tuning the engine's ECU to match the exhaust upgrades can also enhance performance. Always follow local emissions regulations when making modifications.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1992-2001 Subaru WRX Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 1992-2001 Subaru WRX models.
Subaru Technical Service Bulletin: Exhaust System Updates
Coming SoonDetails updates and fixes for common exhaust system issues in 1992-2001 Subaru WRX models.
Subaru WRX Exhaust Parts Catalog
Coming SoonCatalog listing OEM and aftermarket exhaust components for 1992-2001 Subaru WRX models.
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Technical Information
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