Subaru Subaru WRX 2022-present Exhaust Specifications
Subaru Subaru WRX 2022-present

Subaru Subaru WRX 2022-present Exhaust Specifications

Explore the detailed exhaust system specifications for the 2022-Present Subaru WRX. Learn about pipe diameter, muffler design, catalytic converter placement, and emission compliance. Ideal for maintenance, repair, or performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and information about the exhaust system of the 2022-Present Subaru WRX. It is designed to help users understand the technical aspects of the exhaust system, including its components, performance, and maintenance. Use the search functionality to find specific terms or navigate through the sections to explore detailed information about the exhaust system.

How to Use

Use the search bar to enter keywords related to the exhaust system, such as 'muffler' or 'catalytic converter'. The search will highlight relevant sections and subsections for quick access.

Scroll through the document to explore different sections. Each section is organized into subsections with detailed points. Use the table of contents to jump directly to a specific section or subsection.

Key Specifications

Exhaust Material

Stainless Steel

Catalytic Converter Type

Three-Way

Tailpipe Diameter

3.5 inches

Horsepower Support

271 HP

Torque Support

258 lb-ft

Available Specifications

Exhaust System Components

This section covers the main components of the Subaru WRX exhaust system, including the exhaust manifold, catalytic converter, muffler, and tailpipe. Learn about the materials used, their functions, and how they contribute to the overall performance of the vehicle.

Exhaust Manifold
  • Made of high-grade stainless steel for durability
  • Designed to collect exhaust gases from the engine cylinders
  • Features a 4-into-1 design for optimal flow
  • Heat-resistant coating to prevent corrosion
  • Integrated with the turbocharger for improved efficiency
  • Bolted directly to the cylinder head
Catalytic Converter
  • Uses a three-way catalytic converter for emissions control
  • Contains precious metals like platinum, palladium, and rhodium
  • Reduces harmful emissions by converting them into less harmful gases
  • Located close to the engine for quick heat-up
  • OBD-II compliant for emissions monitoring
  • Designed to last the lifetime of the vehicle
Muffler and Tailpipe
  • Dual exhaust system with two mufflers for balanced sound
  • Stainless steel construction for corrosion resistance
  • Tuned for a sporty exhaust note without excessive drone
  • Chrome-plated tailpipe tips for a premium look
  • Designed to reduce backpressure for better performance
  • Easy to replace or upgrade with aftermarket options

Performance and Efficiency

This section focuses on how the exhaust system impacts the performance and efficiency of the Subaru WRX. It includes details on exhaust flow, backpressure, and how the system contributes to horsepower and torque.

Exhaust Flow Dynamics
  • Optimized for minimal backpressure to enhance engine performance
  • Smooth bends and mandrel-bent tubing for efficient flow
  • Supports up to 271 horsepower and 258 lb-ft of torque
  • Turbo-back design for improved turbo spooling
  • Reduces exhaust gas temperature for better efficiency
  • Balanced flow between cylinders for consistent power delivery
Fuel Efficiency and Emissions
  • Meets strict EPA and CARB emissions standards
  • Reduces CO2 emissions by up to 15% compared to older models
  • Lightweight design contributes to better fuel economy
  • Low-restriction catalytic converter for improved efficiency
  • Supports Subaru's Boxer engine design for balanced performance
  • Designed to work seamlessly with the WRX's AWD system

Maintenance and Upgrades

Learn about maintaining the exhaust system and potential upgrades to enhance performance or sound. This section includes tips for inspection, cleaning, and replacing components, as well as popular aftermarket options.

Routine Maintenance
  • Inspect the exhaust system every 12,000 miles for leaks or damage
  • Check for rust or corrosion, especially in winter climates
  • Clean chrome tailpipe tips with a non-abrasive cleaner
  • Ensure all bolts and hangers are tight and secure
  • Replace gaskets and seals as needed to prevent leaks
  • Use OEM parts for replacements to maintain warranty
Aftermarket Upgrades
  • Popular options include cat-back and axle-back exhaust systems
  • Aftermarket systems can increase horsepower by 5-10%
  • Choose from stainless steel or titanium for lightweight performance
  • Adjustable sound levels with valved exhaust systems
  • Look for CARB-compliant systems for emissions legality
  • Installation typically requires basic tools and 2-3 hours

Component Specifications

Overview

Type
Dual exhaust system
Configuration
Quad-tip
Platform
FA24 engine
Material
Stainless steel
Location
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 Width
8 inches (203.2 mm)
Muffler Height
6 inches (152.4 mm)
Tip Diameter
3.5 inches (88.9 mm)
Tip Length
6 inches (152.4 mm)

Materials

Pipes
304 stainless steel
Muffler Body
409 stainless steel
Tips
Polished stainless steel
Gaskets
Graphite-reinforced composite
Hangers
Rubber with steel core

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)
  • Active valve control (optional)
Durability
  • Corrosion-resistant materials
  • Heat-resistant coatings
  • Vibration-dampening mounts
  • Impact-resistant construction
Aesthetics
  • Polished quad tips
  • Customizable tip finishes
  • Integrated diffuser design
  • OEM+ styling
installation
  • Direct bolt-on design
  • No cutting or welding required
  • Includes all necessary hardware
  • Precision alignment

Safety Features

Heat Management
  • Heat shields integrated
  • Thermal insulation
  • Safe clearance from body panels
Structural integrity
  • Reinforced hangers
  • Crash-resistant design
  • Flexible joints
Emissions Compliance
  • Meets EPA standards
  • CARB-compliant
  • OBD-II compatible

Comfort Features

Noise Reduction
  • Acoustic dampening
  • Resonance chambers
  • Quiet cruising mode
Vibration Control
  • Rubber isolators
  • Flexible pipe sections
  • Balanced weight distribution
Temperature Management
  • Heat dissipation fins
  • Cooling air channels
  • Thermal barrier coatings

Accessories

Performance Upgrades
  • High-flow catalytic converter
  • Resonator delete pipe
  • Turbo-back exhaust system
  • Titanium tip options
Maintenance Tools
  • Exhaust hanger tool
  • Gasket replacement kit
  • Cleaning and polishing kit
Aesthetic Options
  • Carbon fiber tips
  • Burnt titanium finish
  • Custom engraving
  • Color-matched tips

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for leaks
  • Check hanger integrity
  • Clean and polish tips
  • Inspect gaskets
  • Check for corrosion
  • Verify alignment
Maintenance Notes
Use only manufacturer-recommended cleaning products to avoid damage to finishes

Warranty

Parts Warranty
Miles: 60,000
Years: 5
Coverage: Defects in materials and workmanship
Corrosion Warranty
Miles: Unlimited
Years: 10
Coverage: Perforation due to corrosion
Performance Warranty
Miles: 30,000
Years: 3
Coverage: Maintains specified performance levels
installation Warranty
Miles: 12,000
Years: 1
Coverage: Issues due to improper installation

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Laser-cut components
  • Robotic welding
  • Flow bench testing
  • Acoustic tuning
Quality Control
Pressure Testing: 100% tested
Fitment Checks: OEM standards
Surface inspections: Visual and tactile
Sustainability Practices
  • Recycled materials used
  • Low-emission manufacturing
  • Waste reduction programs
Production Metrics
Units Per Day: 500
Defect Rate: <0.1%
Lead Time: 2 weeks

Service Information for exhaust Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect exhaust system for leaks
  • Check and tighten all connections
  • Inspect hangers and mounts
  • Clean and polish exhaust tips
  • Verify proper alignment

Use only manufacturer-approved cleaning products

60,000
48
  • Replace exhaust gaskets
  • Inspect for corrosion and damage
  • Check heat shields and insulation
  • Perform acoustic inspection
  • Verify emissions compliance

May require specialized tools for gasket replacement

100,000
84
  • Complete system inspection
  • Replace worn hangers and mounts
  • Check catalytic converter efficiency
  • Perform flow and pressure tests
  • Evaluate overall system performance

Consider professional inspection for optimal performance

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the exhaust system compatible with all 2022-Present Subaru WRX models?

The exhaust system is designed to be compatible with all 2022-Present Subaru WRX models, including both manual and automatic transmissions. It is engineered to fit the factory mounting points and clearances, ensuring a seamless installation. However, it is recommended to verify compatibility with specific trim levels or aftermarket modifications before purchase.

Q2

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. Cleaning the exterior with a mild detergent and water can prevent corrosion. Additionally, check the gaskets and hangers for wear and replace them as needed. Proper maintenance ensures optimal performance and longevity of the exhaust system.

Q3

How do I install or replace the exhaust system on my 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 manifold and mid-pipe connections. Install the new exhaust, starting from the front and working backward, ensuring all gaskets are in place. Tighten bolts evenly to avoid leaks and check for proper alignment 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 holes or cracks in the pipes. 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?

To optimize performance, ensure the exhaust system is properly installed and free of leaks. Consider upgrading to a high-flow catalytic converter or performance muffler for improved airflow. Regularly inspect and maintain the system to prevent corrosion and damage. Pairing the exhaust with a tuned ECU can further enhance performance and throttle response.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2022-Present Subaru WRX Exhaust System Service Manual

Coming Soon

This manual provides detailed instructions for the installation, maintenance, and troubleshooting of the exhaust system for 2022-Present Subaru WRX models.

Technical Service Bulletin: Exhaust System Updates

Coming Soon

This bulletin outlines the latest updates and improvements to the exhaust system for 2022-Present Subaru WRX models, including part revisions and installation tips.

Subaru WRX Exhaust Parts and Accessories Guide

Coming Soon

This guide provides an overview of available exhaust parts and accessories for 2022-Present Subaru WRX models, including performance upgrades and replacement components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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