Subaru Subaru WRX 2002-2007 Exhaust Specifications
Explore detailed exhaust system specifications for the 2002-2007 Subaru WRX, including dimensions, materials, and performance insights. Ideal for maintenance, repair, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the exhaust system of the 2002-2007 Subaru WRX. It is designed to help enthusiasts, mechanics, and owners understand the components, performance characteristics, and maintenance requirements of the exhaust system. Use the search functionality to locate specific terms or navigate through the sections to explore detailed information about each component.
How to Use
Use the search bar to enter keywords related to the exhaust system, such as 'downpipe' or 'muffler'. The search will highlight relevant sections and subsections for quick access.
Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Exhaust Diameter
3 inches
Horsepower Gain
15-20 HP
Material
Stainless Steel
Weight
45 lbs
Warranty
2 years
Available Specifications
Exhaust System Components
This section covers the primary components of the exhaust system, including the headers, downpipe, 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 exhaust system, including the headers, downpipe, catalytic converter, mid-pipe, and muffler. Learn about the materials, design, and function of each part.
Headers
- Equal-length headers for balanced exhaust flow
- Constructed from stainless steel for durability
- Designed to minimize turbo lag
- Heat-resistant coating to reduce underhood temperatures
Downpipe
- 3-inch diameter for improved exhaust flow
- High-flow catalytic converter for emissions compliance
- Mandrel-bent construction to reduce turbulence
- Heat shielding to protect surrounding components
Muffler
- Axle-back design for easy installation
- Stainless steel construction for corrosion resistance
- Tuned for a deep, aggressive exhaust note
- Dual-tip configuration for a sporty appearance
Performance Specifications
This section provides performance-related details about the exhaust system, including flow rates, backpressure, and horsepower gains. Understand how the exhaust system contributes to the overall performance of the vehicle.
Performance Specifications
This section provides performance-related details about the exhaust system, including flow rates, backpressure, and horsepower gains. Understand how the exhaust system contributes to the overall performance of the vehicle.
Flow Rates
- Maximum flow rate of 450 CFM (cubic feet per minute)
- Optimized for turbocharged engines
- Reduced backpressure for improved spool time
- Compatible with aftermarket turbo upgrades
Horsepower Gains
- Up to 15-20 HP increase with a full exhaust system
- Gains vary depending on tuning and supporting modifications
- Best results achieved with a high-flow intake and ECU tuning
- Dyno-tested for consistent performance improvements
Maintenance and Upkeep
Learn about the maintenance requirements for the exhaust system, including inspection intervals, common issues, and replacement recommendations. Keep your exhaust system in top condition for optimal performance.
Maintenance and Upkeep
Learn about the maintenance requirements for the exhaust system, including inspection intervals, common issues, and replacement recommendations. Keep your exhaust system in top condition for optimal performance.
Inspection Intervals
- Inspect exhaust system every 12,000 miles
- Check for leaks, cracks, and rust
- Ensure all hangers and brackets are secure
- Inspect heat shields for damage or looseness
Common Issues
- Rust and corrosion in high-humidity environments
- Loose or broken exhaust hangers
- Cracked welds on headers or downpipe
- Worn-out gaskets causing exhaust leaks
Replacement Recommendations
- Replace gaskets during exhaust system upgrades
- Upgrade to aftermarket components for better performance
- Use anti-seize compound on bolts for easier removal
- Consider ceramic coating for headers to reduce heat
Search Specifications
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Component Specifications
Overview
- Type
- Turbo-back exhaust system
- Configuration
- Dual-pipe design
- Platform
- 2002-2007 Subaru WRX
- Material
- Stainless steel
- Location
- Underbody, rear-mounted
Dimensions
- Pipe Diameter
- 2.5 inches (63.5 mm)
- Overall Length
- 72 inches (1828.8 mm)
- Muffler Length
- 24 inches (609.6 mm)
- Muffler Diameter
- 5 inches (127 mm)
- Tip Diameter
- 3.5 inches (88.9 mm)
- Tip Length
- 6 inches (152.4 mm)
- Weight
- 28 lbs (12.7 kg)
Materials
- Piping
- 304 stainless steel
- Muffler
- 409 stainless steel
- Tips
- Polished stainless steel
- Gaskets
- Graphite-reinforced composite
- Hangers
- Reinforced rubber
Features
- Performance
-
- Increased exhaust flow
- Reduced backpressure
- Enhanced turbo spool response
- Improved horsepower and torque
- Design
-
- Mandrel-bent piping
- Dual-wall exhaust tips
- CNC-cut flanges
- TIG-welded joints
- Durability
-
- Corrosion-resistant materials
- Heat-resistant coatings
- Reinforced hangers
- Vibration-dampening mounts
- Sound
-
- Deep, aggressive tone
- Adjustable baffles
- Resonator-equipped
- Minimal drone
- installation
-
- Direct bolt-on fitment
- Included hardware kit
- No cutting or welding required
- Detailed instructions
Safety Features
- Heat Management
-
- Heat shields included
- Thermal wrap compatibility
- Safe clearance from fuel lines
- Structural integrity
-
- Reinforced hangers
- Crush-resistant piping
- Impact-resistant muffler
- Emissions Compliance
-
- Catalytic converter included
- O2 sensor bungs
- EPA-compliant design
Comfort Features
- Noise Reduction
-
- Resonator-equipped
- Sound-dampening materials
- Minimal cabin drone
- Vibration Control
-
- Rubber-mounted hangers
- Flexible joints
- Vibration-dampening mounts
- Aesthetics
-
- Polished tips
- Customizable tip designs
- Sleek underbody profile
Accessories
- installation
-
- Gasket kit
- Hardware kit
- Heat shield
- Exhaust hangers
- Performance
-
- High-flow catalytic converter
- Turbo heat wrap
- Exhaust manifold spacers
- Maintenance
-
- Exhaust sealant
- Rust inhibitor spray
- Polishing kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect for leaks
- Check hanger integrity
- Clean exhaust tips
- Tighten all bolts
- Inspect heat shields
- Maintenance Notes
- Avoid harsh chemicals on polished surfaces. Use high-temperature sealant for minor leaks.
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: Fitment and installation issues
Production Details
- Manufacturer
- Subaru Performance Division
- Manufacturing Process
-
- CNC machining
- TIG welding
- Mandrel bending
- Robotic assembly
- Quality Control
- Pressure Testing: 100% testedFitment Check: Vehicle-specific jigsFinish Inspection: Visual and tactile
- Sustainability Practices
-
- Recycled stainless steel
- Low-emission manufacturing
- Eco-friendly packaging
- Production Metrics
- Units Per Day: 150Defect Rate: 0.5%Lead Time: 2 weeks
Service Information for exhaust Service
Maintenance and service requirements specific to this component
- Inspect exhaust system for leaks
- Check hanger integrity
- Clean and polish exhaust tips
- Tighten all bolts and clamps
- Inspect heat shields for damage
Use high-temperature sealant for minor leaks. Avoid harsh chemicals on polished surfaces.
- Replace gaskets and seals
- Inspect catalytic converter
- Check O2 sensor functionality
- Perform full system pressure test
- Apply rust inhibitor spray
Special tools required for pressure testing. Ensure proper torque specifications for bolts.
- Replace catalytic converter if needed
- Inspect and replace hangers
- Check for internal muffler damage
- Perform sound level testing
- Replace heat shields if corroded
Critical to check for internal damage. Use OEM or equivalent replacement parts.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is this exhaust system compatible with all 2002-2007 Subaru WRX models?
Is this exhaust system compatible with all 2002-2007 Subaru WRX models?
This exhaust system is designed to fit all 2002-2007 Subaru WRX models, including sedan and wagon variants. It is compatible with both manual and automatic transmissions. However, slight modifications may be required for vehicles with aftermarket components or non-standard configurations. Always verify fitment with your specific vehicle's VIN or consult a professional installer.
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, checking gaskets and hangers for wear, and ensuring all bolts and clamps are securely tightened. Clean the exhaust tips periodically to prevent buildup. It is recommended to inspect the system every 6 months or 6,000 miles, depending on driving conditions and climate.
Q3 How do I install or replace the exhaust system on my 2002-2007 Subaru WRX?
How do I install or replace the exhaust system on my 2002-2007 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. Install the new system, starting from the downpipe and working backward, ensuring all gaskets are properly seated. Tighten all bolts to the manufacturer's torque specifications and check for leaks.
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 may indicate loose components, damaged gaskets, or leaks. Inspect the system for loose bolts, cracked hangers, or holes in the piping. Tighten or replace any faulty parts. If the issue persists, consult a professional to diagnose potential internal damage or misalignment.
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 tuned ECU for improved airflow and power output. Ensure the system is properly aligned to minimize backpressure. Regularly inspect and maintain the system to prevent performance degradation. Avoid excessive modifications that may void warranties or harm engine components.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2002-2007 Subaru WRX Service Manual
Coming SoonComprehensive service manual covering all aspects of maintenance, repair, and troubleshooting for the 2002-2007 Subaru WRX.
Technical Service Bulletin: Exhaust System Updates
Coming SoonOfficial Subaru bulletin detailing updates and fixes for common exhaust system issues in 2002-2007 WRX models.
Subaru WRX Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket parts, including exhaust systems, for the 2002-2007 Subaru WRX.
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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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