Subaru Subaru WRX 2002-2007 Suspension Specifications
Subaru Subaru WRX 2002-2007

Subaru Subaru WRX 2002-2007 Suspension Specifications

Explore detailed suspension specifications for the 2002-2007 Subaru WRX. Learn about alignment settings, component details, and maintenance tips for optimal performance and handling.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the suspension system of the 2002-2007 Subaru WRX. It is designed to help enthusiasts, mechanics, and owners understand the components, configurations, and performance characteristics of the suspension. Use the search and navigation instructions to quickly find specific details or explore sections for a comprehensive understanding of the WRX's suspension setup.

How to Use

Use the search functionality to locate specific suspension components or terms. Enter keywords like 'spring rate' or 'strut type' to find relevant information quickly.

Navigate through the sections using the table of contents. Each section is organized by major suspension components, with subsections detailing specific features and technical points.

Key Specifications

Front Spring Rate

217 lb/in

Rear Spring Rate

194 lb/in

Front Anti-Roll Bar

20 mm

Rear Anti-Roll Bar

18 mm

Ride Height

150 mm (front), 145 mm (rear)

Available Specifications

Front Suspension

The front suspension of the 2002-2007 Subaru WRX is designed for performance and durability. It features a MacPherson strut setup with key components optimized for handling and stability. This section covers the strut assembly, spring rates, and other critical details.

Strut Assembly
  • MacPherson strut design with integrated coil spring
  • Gas-filled shock absorbers for improved damping
  • Aluminum lower L-arm for reduced weight
  • Anti-roll bar diameter: 20 mm
  • Bushing material: Rubber with urethane options
  • Strut tower brace available as an upgrade
Spring Specifications
  • Front spring rate: 217 lb/in
  • Progressive spring design for balanced handling
  • Spring material: High-tensile steel
  • Coil diameter: 140 mm
  • Preload adjustment not standard
  • Optional lowering springs for aftermarket setups

Rear Suspension

The rear suspension system complements the front setup, providing stability and traction. It utilizes a multi-link design with a focus on reducing unsprung weight and improving cornering performance. This section details the rear struts, springs, and other components.

Strut and Spring Configuration
  • MacPherson strut with separate coil spring
  • Rear spring rate: 194 lb/in
  • Anti-roll bar diameter: 18 mm
  • Trailing arm and lateral links for precise control
  • Bushing material: Rubber with urethane options
  • Adjustable camber arms available for aftermarket
Differential and Axle Integration
  • Rear differential mounted to subframe
  • Axle geometry optimized for AWD performance
  • Bushings designed to minimize flex
  • Subframe material: Steel with reinforced mounts
  • Optional differential bushings for reduced play
  • Compatible with aftermarket sway bars

Suspension Geometry

The suspension geometry of the 2002-2007 Subaru WRX is engineered for balanced handling and responsiveness. This section covers key measurements, alignment settings, and their impact on performance.

Alignment Specifications
  • Front camber: -0.5° to -1.5° (adjustable with aftermarket parts)
  • Rear camber: -1.0° to -2.0°
  • Front toe: 0° to +0.15°
  • Rear toe: 0° to +0.15°
  • Caster angle: 4.5° to 5.5°
  • Optional adjustable control arms for fine-tuning
Ride Height and Ground Clearance
  • Stock ride height: 150 mm (front), 145 mm (rear)
  • Ground clearance: 160 mm
  • Wheelbase: 2525 mm
  • Track width: 1485 mm (front), 1480 mm (rear)
  • Optional lowering kits reduce ride height by 30-50 mm
  • Compatible with aftermarket coilovers

Component Specifications

Overview

Type
MacPherson strut front, multi-link rear
Configuration
Independent suspension
Platform
Subaru Global Platform (SGP)
Material
High-strength steel and aluminum
Location
Front and rear axles

Dimensions

Front Strut Length
22.5 inches (571.5 mm)
Rear Shock Length
20.8 inches (528.3 mm)
Spring Wire Diameter
0.55 inches (14 mm)
Spring Free Length
13.8 inches (350.5 mm)
Sway Bar Diameter Front
0.98 inches (25 mm)
Sway Bar Diameter Rear
0.79 inches (20 mm)
Track Width Front
58.7 inches (1491 mm)
Track Width Rear
58.3 inches (1481 mm)

Materials

Springs
Chromium-silicon alloy steel
Struts
High-strength steel with aluminum housing
Bushings
Polyurethane and rubber composite
Control Arms
Forged aluminum
Sway Bars
Heat-treated steel

Features

Damping
  • Gas-charged shock absorbers
  • Twin-tube design
  • Adjustable damping (STI models)
  • High-pressure nitrogen gas
Springs
  • Progressive rate springs
  • Anti-corrosion coating
  • Precision wound coils
  • High tensile strength
Bushings
  • High-durability rubber
  • Polyurethane options available
  • Self-lubricating design
  • Noise-reducing technology
Geometry
  • Optimized camber angles
  • Negative scrub radius
  • Anti-dive and anti-squat design
  • Enhanced roll center height
Adjustability
  • Camber adjustment (rear)
  • Toe adjustment (front and rear)
  • Ride height adjustment (aftermarket)
  • Sway bar link adjustability

Safety Features

Structural integrity
  • Reinforced mounting points
  • Crash-absorbing design
Stability
  • Electronic Stability Control (ESC)
  • Traction Control System (TCS)
Durability
  • Corrosion-resistant coatings
  • High-cycle fatigue resistance

Comfort Features

Noise Reduction
  • Isolated subframe mounts
  • Acoustic dampening bushings
Ride Quality
  • Progressive spring rates
  • Tuned damping characteristics
Vibration Control
  • Hydraulic bushings
  • Dynamic damper valves
Temperature Management
  • Heat-resistant seals
  • Thermal-stable fluids

Accessories

Upgrades
  • Coilover kits
  • Adjustable sway bars
  • Polyurethane bushings
  • Strut tower braces
Tools
  • Spring compressors
  • Alignment kits
  • Torque wrenches
  • Bushing press tools
Maintenance
  • Replacement struts
  • Shock absorber rebuild kits
  • Bushing replacement sets
  • Alignment shims

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect struts and shocks for leaks
  • Check bushings for wear
  • Lubricate suspension components
  • Inspect and tighten mounting bolts
  • Check alignment settings
Maintenance Notes
Replace worn components immediately to prevent further damage.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Manufacturer defects
Powertrain
Miles: 60,000
Years: 5
Coverage: Suspension components
Corrosion
Miles: Unlimited
Years: 5
Coverage: Rust perforation
Emissions
Miles: 80,000
Years: 8
Coverage: Emissions-related components

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Precision forging
  • Robotic welding
  • CNC machining
  • Heat treatment
Quality Control
Testing: Durability testing, Fatigue testing, Corrosion resistance testing
Standards: ISO 9001, JIS D 0201, SAE J2530
Sustainability Practices
  • Recycled materials
  • Low-emission manufacturing
  • Energy-efficient processes
Production Metrics
Annual Output: 500,000 units
Defect Rate: 0.01%
Lead Time: 4 weeks

Service Information for suspension Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect struts and shocks for leaks
  • Check bushings for wear
  • Lubricate suspension components
  • Inspect and tighten mounting bolts
  • Check alignment settings

Replace worn components immediately to prevent further damage.

60,000
48
  • Replace struts and shocks if necessary
  • Inspect and replace bushings
  • Check and adjust alignment
  • Inspect subframe mounts
  • Test suspension geometry

Use OEM or equivalent parts for replacements.

100,000
84
  • Complete suspension overhaul
  • Replace all bushings and mounts
  • Inspect and replace control arms
  • Check and replace sway bar links
  • Perform full alignment

Consider upgrading to performance components if desired.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What suspension components are compatible with the 2002-2007 Subaru WRX?

The 2002-2007 Subaru WRX is compatible with a range of aftermarket and OEM suspension components, including coilovers, struts, and lowering springs. Key specifications include a 5x100 bolt pattern, 56.1mm hub bore, and compatibility with GD chassis models. Ensure components are designed for the WRX sedan or wagon, as fitment may vary. Always verify compatibility with your specific model year and trim.

Q2

What is the recommended maintenance schedule for the suspension system?

Inspect the suspension system every 12,000 miles or annually. Check for worn bushings, leaking struts, and loose bolts. Replace struts and shocks every 50,000-75,000 miles or if signs of wear appear. Lubricate bushings and joints during routine maintenance. Regularly align the wheels to prevent uneven tire wear and ensure optimal handling.

Q3

How do I replace the front struts on a 2002-2007 Subaru WRX?

1. Lift the car and remove the front wheels. 2. Disconnect the sway bar link and brake line bracket. 3. Remove the strut-to-knuckle bolts and lower the strut assembly. 4. Compress the spring using a spring compressor and remove the top mount. 5. Install the new strut, reassemble components, and torque bolts to factory specifications. 6. Reinstall the wheel and lower the car.

Q4

What are common suspension issues and how can I troubleshoot them?

Common issues include clunking noises, uneven ride height, and poor handling. Clunking may indicate worn strut mounts or loose components. Uneven ride height suggests sagging springs or damaged struts. Poor handling can result from misaligned wheels or worn bushings. Inspect components for wear, tighten loose bolts, and replace damaged parts. Perform a wheel alignment if necessary.

Q5

How can I optimize the suspension for better performance?

Upgrade to performance coilovers or adjustable struts for improved handling and ride height control. Install polyurethane bushings for increased rigidity and responsiveness. Pair with a stiffer sway bar to reduce body roll. Ensure proper alignment and corner balancing for track use. Regularly inspect and maintain components to sustain performance gains.

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 Soon

Comprehensive guide covering suspension system maintenance, repair, and specifications for the 2002-2007 Subaru WRX.

Subaru Technical Service Bulletin: Suspension Noise

Coming Soon

TSB addressing common suspension noise issues and recommended fixes for 2002-2007 Subaru WRX models.

Subaru WRX Suspension Parts Catalog

Coming Soon

Catalog listing OEM and aftermarket suspension components for the 2002-2007 Subaru WRX, including part numbers and compatibility details.

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.

15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

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.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Subaru Specs. All rights reserved.