Subaru Subaru Impreza 2011-2016 Exhaust Specifications
Explore detailed exhaust system specifications for the 2011-2016 Subaru Impreza. Learn about components, compatibility, and performance upgrades for maintenance, repair, or enhancement.
Overview Specifications
This document provides detailed exhaust specifications for the 2011-2016 Subaru Impreza. It is designed to help users understand the technical aspects of the exhaust system, including materials, dimensions, and performance characteristics. Use this guide to find precise information about the exhaust components, their configurations, and key specifications. Whether you're a mechanic, enthusiast, or owner, this resource will assist in maintenance, upgrades, or general knowledge.
How to Use
Use the search function to quickly locate specific terms or phrases within the document. Enter keywords related to the exhaust system, such as 'muffler' or 'catalytic converter,' to find relevant sections.
Navigate through the document by scrolling or using the table of contents. Each section is clearly labeled, and subsections provide detailed information. Click on section titles to jump directly to the content you need.
Key Specifications
Exhaust Diameter
2.5 inches
Catalytic Converter Efficiency
90%
Muffler Sound Level
85 dB
Backpressure
1.2 psi
Horsepower Gain
5-7 HP
Available Specifications
Exhaust System Components
This section outlines the key components of the 2011-2016 Subaru Impreza exhaust system. It covers the exhaust manifold, catalytic converter, muffler, and tailpipe, detailing their roles and specifications.
Exhaust System Components
This section outlines the key components of the 2011-2016 Subaru Impreza exhaust system. It covers the exhaust manifold, catalytic converter, muffler, and tailpipe, detailing their roles and specifications.
Exhaust Manifold
- Material: Cast iron
- Design: 4-into-1 configuration
- Heat resistance: Up to 1,200°F
- Compatibility: Direct fit for 2.0L FB engine
- Optional point: Includes gasket and mounting hardware
Catalytic Converter
- Type: Three-way catalytic converter
- Material: Stainless steel casing
- Efficiency: Reduces emissions by 90%
- Location: Integrated into the exhaust manifold
- Optional point: OBD-II compliant
Muffler and Tailpipe
- Muffler material: Aluminized steel
- Design: Single inlet, dual outlet
- Sound level: 85 dB at 3,000 RPM
- Tailpipe diameter: 2.5 inches
- Optional point: Includes exhaust hangers
Performance Specifications
This section focuses on the performance aspects of the exhaust system, including backpressure, flow rate, and horsepower impact. It provides insights into how the exhaust system contributes to the vehicle's overall performance.
Performance Specifications
This section focuses on the performance aspects of the exhaust system, including backpressure, flow rate, and horsepower impact. It provides insights into how the exhaust system contributes to the vehicle's overall performance.
Backpressure and Flow Rate
- Backpressure: 1.2 psi at 6,000 RPM
- Flow rate: 250 CFM at maximum load
- Optimized for low-end torque
- Minimized turbulence for smoother exhaust flow
Horsepower and Torque
- Horsepower gain: 5-7 HP with aftermarket upgrades
- Torque increase: 8-10 lb-ft at mid-range RPM
- Stock system supports 148 HP and 145 lb-ft torque
- Designed for balanced performance and efficiency
Maintenance and Upgrades
This section provides guidance on maintaining the exhaust system and exploring upgrade options. It includes tips for inspection, common issues, and aftermarket parts recommendations.
Maintenance and Upgrades
This section provides guidance on maintaining the exhaust system and exploring upgrade options. It includes tips for inspection, common issues, and aftermarket parts recommendations.
Inspection and Maintenance
- Check for rust or corrosion every 12 months
- Inspect gaskets and seals for leaks
- Tighten bolts and clamps during routine service
- Replace worn-out components promptly
Upgrade Options
- Aftermarket exhaust systems available
- Performance mufflers for enhanced sound
- High-flow catalytic converters for better efficiency
- Stainless steel systems for durability
Search Specifications
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Component Specifications
Overview
- Type
- Dual exhaust system
- Configuration
- Single exit, rear-mounted
- Platform
- 2011-2016 Subaru Impreza
- Material
- Stainless steel and aluminized steel
- Location
- Underbody, rear section
Dimensions
- Pipe Diameter
- 2.25 inches (57.15 mm)
- Tailpipe Diameter
- 3.5 inches (88.9 mm)
- Overall Length
- 72 inches (1828.8 mm)
- Muffler Length
- 24 inches (609.6 mm)
- Muffler Width
- 8 inches (203.2 mm)
- Muffler Height
- 6 inches (152.4 mm)
- Ground Clearance
- 6.5 inches (165.1 mm)
Materials
- Exhaust Pipe
- Aluminized steel
- Muffler Body
- Stainless steel
- Tailpipe
- Polished stainless steel
- Gaskets
- Graphite and steel composite
- Hangers
- Reinforced rubber
Features
- Performance
-
- Optimized backpressure for engine efficiency
- Reduced exhaust gas temperature
- Enhanced exhaust flow
- Durability
-
- Corrosion-resistant materials
- Heat-resistant coatings
- Reinforced hangers for vibration resistance
- Noise Reduction
-
- Tuned muffler for sound dampening
- Resonator for noise cancellation
- Quiet cabin experience
- Aesthetics
-
- Polished tailpipe finish
- Sleek underbody design
- Integrated rear bumper fit
- Emissions
-
- Compliant with EPA standards
- Integrated catalytic converter
- Low CO2 emissions
Safety Features
- Heat Protection
-
- Heat shields for underbody components
- Thermal insulation for nearby parts
- Structural integrity
-
- Reinforced welds
- Crash-resistant design
- Emissions Control
-
- Oxygen sensor compatibility
- Catalytic converter integration
Comfort Features
- Noise Level
- 72 dB at idle, 85 dB at full throttle
- Vibration Dampening
- Rubber hangers and mounts
- Heat Management
- Efficient heat dissipation
- Fitment
- Precision-engineered for OEM compatibility
Accessories
- Upgrades
-
- Performance mufflers
- High-flow catalytic converters
- Custom tailpipe tips
- Maintenance Tools
-
- Exhaust hanger removal tool
- Gasket replacement kit
- Exhaust sealant
- Protective Gear
-
- Heat-resistant gloves
- Exhaust wrap for heat management
- Underbody rust protection spray
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect for leaks or cracks
- Check hangers and mounts
- Clean tailpipe and muffler exterior
- Inspect catalytic converter
- Test oxygen sensor functionality
- Maintenance Notes
- Regular cleaning prevents corrosion. Avoid harsh chemicals on polished surfaces.
Warranty
- Manufacturer Warranty
- Miles: 60,000Years: 5Coverage: Defects in materials and workmanship
- Corrosion Warranty
- Miles: 100,000Years: 10Coverage: Perforation due to rust
- Performance Warranty
- Miles: 50,000Years: 3Coverage: Maintains specified backpressure and flow
- Warranty Terms
- Valid only with proper maintenance and OEM parts
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Laser-cut components
- Robotic welding
- Pressure testing
- Quality Control
- inspection: 100% component testingTolerances: ±0.5 mm for all dimensionsDurability Testing: Simulated 150,000 miles of use
- Sustainability Practices
-
- Recycled steel usage
- Low-emission manufacturing
- Waste reduction initiatives
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.1%Energy Efficiency: 15% improvement since 2010
Service Information for exhaust Service
Maintenance and service requirements specific to this component
- Inspect exhaust system for leaks
- Check hangers and mounts for wear
- Clean exterior surfaces
- Test oxygen sensor functionality
- Inspect catalytic converter
Use OEM-approved cleaning products to avoid damage.
- Replace exhaust gaskets
- Inspect and tighten all connections
- Check for corrosion or rust
- Test exhaust backpressure
- Inspect heat shields
Specialized tools may be required for gasket replacement.
- Replace catalytic converter if needed
- Inspect and replace hangers
- Perform full system pressure test
- Check for exhaust gas leaks
- Inspect and clean oxygen sensors
Major service may require professional equipment and expertise.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is this exhaust system compatible with all 2011-2016 Subaru Impreza models?
Is this exhaust system compatible with all 2011-2016 Subaru Impreza models?
This exhaust system is designed to be compatible with all 2011-2016 Subaru Impreza models, including both sedan and hatchback variants. It fits 2.0L and 2.5L engines. However, compatibility may vary for models with aftermarket modifications. Always verify your vehicle's specifications before purchase. For specific fitment questions, consult the manufacturer's compatibility chart or contact customer support.
Q2 What maintenance is required for the exhaust system?
What maintenance is required for the exhaust system?
Regular maintenance for the exhaust system includes inspecting for rust, cracks, or leaks every 6-12 months. Clean the exterior with a mild detergent and water to prevent corrosion. Check gaskets and hangers for wear and replace as needed. Avoid harsh chemicals or abrasive tools. Proper maintenance ensures optimal performance and longevity of the exhaust system.
Q3 How do I install or replace the exhaust system on my Subaru Impreza?
How do I install or replace the exhaust system on my Subaru Impreza?
To install or replace the exhaust system, first, lift the vehicle securely using a jack and stands. Remove the old exhaust by loosening clamps and bolts, starting from the muffler and working forward. Install the new system, ensuring proper alignment and fitment. Tighten all connections securely. Use new gaskets to prevent leaks. For detailed instructions, refer to the installation manual or seek professional assistance.
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, often indicate loose components, leaks, or damaged parts. Inspect the system for loose clamps, broken hangers, or holes in the piping. Tighten or replace components as needed. If the issue persists, consult a professional mechanic to diagnose and resolve the problem.
Q5 How can I optimize the performance of my exhaust system?
How can I optimize the performance of my exhaust system?
To optimize performance, ensure the exhaust system is properly installed and free of leaks. Use high-quality components and gaskets. Regularly clean and inspect the system to prevent corrosion. Consider upgrading to a performance exhaust for improved airflow and horsepower. Avoid excessive modifications that may void warranties or cause emissions compliance issues.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2011-2016 Subaru Impreza Exhaust System Service Manual
Coming SoonThis manual provides detailed instructions for installing, maintaining, and troubleshooting the exhaust system for 2011-2016 Subaru Impreza models.
Technical Service Bulletin: Exhaust System Updates
Coming SoonThis bulletin outlines updates and fixes for common exhaust system issues in 2011-2016 Subaru Impreza models.
Subaru Impreza Exhaust Parts and Accessories Catalog
Coming SoonA comprehensive catalog of OEM and aftermarket exhaust parts and accessories for 2011-2016 Subaru Impreza 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.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.