Subaru Subaru WRX 2008-2014 Exhaust Specifications
Subaru Subaru WRX 2008-2014

Subaru Subaru WRX 2008-2014 Exhaust Specifications

Discover detailed exhaust specifications for the 2008-2014 Subaru WRX, including the exhaust manifold, catalytic converter, muffler, and piping. This guide is essential for maintenance, repair, and performance upgrades, providing accurate data for mechanics and enthusiasts alike.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the exhaust system for the 2008-2014 Subaru WRX. It is designed to help enthusiasts, mechanics, and owners understand the components, performance, and maintenance of the exhaust system. Use the search and navigation instructions to quickly find relevant information. The sections are organized to cover key aspects of the exhaust system, including materials, dimensions, and performance characteristics.

How to Use

Use the search bar to find specific terms or components within the document. Keywords like 'downpipe,' 'muffler,' or 'catalytic converter' will yield relevant results.

Scroll through the sections or use the table of contents to jump to specific topics. Each section is divided into subsections for easy access to detailed information.

Key Specifications

Exhaust Diameter

2.5 inches

Flow Rate

450 CFM

Muffler Weight

12 lbs

Horsepower Support

Up to 350 HP

Material

Stainless Steel

Available Specifications

Exhaust System Components

This section covers the primary components of the exhaust system, including the downpipe, midpipe, muffler, and catalytic converter. Learn about their materials, construction, and roles in the overall system.

Downpipe
  • Constructed from stainless steel for durability
  • Includes a high-flow catalytic converter
  • Diameter: 2.5 inches
  • Designed to reduce backpressure
  • Compatible with aftermarket turbo upgrades
  • Heat-resistant coating for thermal efficiency
Muffler
  • Stainless steel construction with polished finish
  • Dual-tip design for aesthetic appeal
  • Internal baffling for sound reduction
  • Weight: 12 lbs
  • Optimized for performance and noise control
  • Direct bolt-on replacement available

Performance Specifications

This section focuses on the performance aspects of the exhaust system, including flow rates, backpressure, and horsepower gains. Understand how the system enhances the WRX's performance.

Flow Rate
  • Maximum flow rate: 450 CFM
  • Optimized for turbocharged engines
  • Reduces exhaust gas temperature
  • Improves throttle response
  • Supports up to 350 horsepower
  • Compatible with stock and aftermarket setups
Backpressure
  • Low backpressure design for efficiency
  • Maintains optimal exhaust velocity
  • Balances performance and emissions
  • Reduces turbo lag
  • Enhances mid-range torque
  • Tested for durability under high stress

Maintenance and Upgrades

This section provides guidance on maintaining the exhaust system and upgrading it for better performance. Learn about common issues, replacement intervals, and aftermarket options.

Maintenance Tips
  • Inspect for rust and corrosion annually
  • Check gaskets and seals for leaks
  • Clean exhaust tips regularly
  • Replace worn components promptly
  • Use high-temperature lubricants for bolts
  • Follow manufacturer's service intervals
Upgrade Options
  • Aftermarket downpipes for increased flow
  • Cat-back systems for improved sound
  • High-performance mufflers for weight reduction
  • Heat wraps for thermal management
  • Titanium exhaust systems for weight savings
  • Custom tuning for optimal performance

Component Specifications

Overview

Type
Cat-back exhaust system
Configuration
Dual exit
Platform
2008-2014 Subaru WRX
Material
Stainless steel
Location
Rear underbody

Dimensions

Pipe Diameter
2.5 inches (63.5 mm)
Overall Length
72 inches (1828.8 mm)
Muffler Length
18 inches (457.2 mm)
Tip Diameter
3.5 inches (88.9 mm)
Tip Length
6 inches (152.4 mm)
Ground Clearance
6.5 inches (165.1 mm)
Weight
22 lbs (9.98 kg)

Materials

Main Pipe
304 stainless steel
Muffler Body
409 stainless steel
Exhaust Tips
Polished 304 stainless steel
Gaskets
Graphite-reinforced composite
Hangers
Reinforced rubber

Features

Performance
  • Optimized flow design
  • Reduced backpressure
  • Enhanced exhaust scavenging
  • Improved horsepower and torque
Sound
  • Deep, aggressive tone
  • Resonance-free design
  • Adjustable sound levels (optional)
  • Compliant with noise regulations
Durability
  • Corrosion-resistant materials
  • High-temperature coatings
  • Reinforced hanger points
  • Impact-resistant design
installation
  • Direct bolt-on fitment
  • No cutting or welding required
  • Includes all necessary hardware
  • Detailed installation instructions
Aesthetics
  • Polished stainless steel finish
  • Dual angled exhaust tips
  • Custom branding options
  • Sleek, OEM+ appearance

Safety Features

Heat Management
  • Heat shields integrated
  • Thermal-resistant coatings
  • Safe clearance from fuel lines
Structural integrity
  • Reinforced hanger brackets
  • Vibration dampening
  • Crash-resistant design
Emissions Compliance
  • Meets EPA standards
  • Compatible with OEM catalytic converters
  • Low emissions output

Comfort Features

Noise Control
  • Resonance-free muffler design
  • Sound-dampening materials
  • Quiet cruising mode (optional)
Vibration Reduction
  • Flexible hanger mounts
  • Vibration-absorbing gaskets
  • Balanced exhaust flow
Heat Management
  • Heat shields for cabin protection
  • Thermal wraps available
  • Cool-touch exhaust tips

Accessories

installation
  • Replacement gaskets
  • Extra hanger brackets
  • Heat-resistant bolts
Performance
  • High-flow catalytic converter
  • Turbo-back exhaust extension
  • Exhaust wrap kit
Aesthetics
  • Custom tip finishers
  • Carbon fiber tip covers
  • Heat-resistant paint

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for leaks or cracks
  • Check hanger brackets for wear
  • Clean exhaust tips
  • Tighten all bolts and clamps
  • Inspect heat shields
Maintenance Notes
Avoid harsh chemicals when cleaning. Use only mild soap and water for polished surfaces.

Warranty

Materials Warranty
Years: 5
Miles: 60,000
Coverage: Defects in materials
Workmanship Warranty
Years: 3
Miles: 36,000
Coverage: Manufacturing defects
Performance Warranty
Years: 2
Miles: 24,000
Coverage: Guaranteed horsepower increase
Corrosion Warranty
Years: 10
Miles: 100,000
Coverage: Perforation due to rust

Production Details

Manufacturer
Subaru Performance Division
Manufacturing Process
  • Laser-cut piping
  • TIG welding
  • CNC-machined flanges
  • Robotic assembly
Quality Control
Pressure Testing: 100% tested for leaks
Fitment Check: OEM-fit verified
Finish Inspection: Visual and tactile inspection
Sustainability Practices
  • Recycled stainless steel
  • Low-emission manufacturing
  • Eco-friendly packaging
Production Metrics
Units Per Day: 150
Lead Time: 2-4 weeks
Defect Rate: <0.5%

Service Information for exhaust Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect exhaust system for leaks
  • Check hanger brackets for wear
  • Tighten all bolts and clamps
  • Clean exhaust tips
  • Inspect heat shields

Use only mild soap and water for cleaning polished surfaces.

60,000
48
  • Replace exhaust gaskets
  • Inspect for corrosion or rust
  • Check for vibration or rattling
  • Test exhaust backpressure
  • Verify emissions compliance

Ensure proper torque specifications when replacing gaskets.

100,000
84
  • Full exhaust system inspection
  • Replace worn hanger brackets
  • Check for structural integrity
  • Perform emissions test
  • Evaluate performance metrics

Consider professional inspection for high-mileage vehicles.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is this exhaust system compatible with all 2008-2014 Subaru WRX models?

This exhaust system is designed to be compatible with all 2008-2014 Subaru WRX models, including both sedan and hatchback variants. It is engineered to fit the factory mounting points and clearances, ensuring a seamless installation. However, it is recommended to verify compatibility with specific trims or aftermarket modifications, as certain configurations may require additional adjustments or parts.

Q2

What maintenance is required for the exhaust system?

Regular maintenance for the exhaust system includes inspecting for rust, corrosion, or damage, especially in harsh weather conditions. Clean the exhaust tips periodically to prevent buildup. Check gaskets and hangers for wear and replace them as needed. Ensure all bolts and connections are tight to prevent leaks. A professional inspection every 12-18 months is recommended to maintain optimal performance and longevity.

Q3

How do I install or replace the exhaust system on my 2008-2014 Subaru WRX?

To install or replace the exhaust system, first, safely lift the vehicle and secure it on jack stands. Remove the old exhaust by loosening the bolts at the downpipe and midpipe connections, then detach the hangers. Install the new exhaust by aligning it with the factory mounting points, securing the hangers, and tightening the bolts. Use new gaskets to ensure a proper seal. Double-check all connections and clearances before lowering the vehicle.

Q4

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 pipes. If the issue persists, consult a professional mechanic to diagnose and resolve the problem, as ignoring it could lead to further damage or reduced performance.

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. Pair it with a high-flow downpipe and a tuned ECU for improved airflow and power gains. Regularly inspect and maintain the system to prevent corrosion or damage. Avoid excessive idling and short trips, as these can lead to moisture buildup. Consider upgrading to a performance-oriented exhaust for enhanced sound and 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.

2008-2014 Subaru WRX Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and technical specifications for the 2008-2014 Subaru WRX.

Technical Service Bulletin: Exhaust System Updates

Coming Soon

Details updates and fixes related to the exhaust system for 2008-2014 Subaru WRX models.

Subaru WRX Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts, including exhaust systems, for the 2008-2014 Subaru WRX.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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