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ACT StreetLite Flywheel 2002-2005 WRX

Current price $368.00
Original price $454.00
Original price $454.00 - Original price $454.00
Original price $454.00
$368.00 - $368.00
Current price $368.00
-19% -19%
12 In Stock, Usually Ships within 1-2 Business Days
SKU 600175
by ACT
Lease to own Pay as low as $/week

DETAILS

ACT StreetLite Flywheel 2002-2005 WRX | Lightweight Performance Upgrade | Drivetrain

Overview

The ACT StreetLite Flywheel is a high-performance upgrade designed specifically for the 2002-2005 Subaru WRX. Crafted to improve engine response and acceleration, this lightweight flywheel is ideal for street driving and mild drag racing applications. By reducing rotational inertia, it allows your engine to rev more quickly and respond more precisely to throttle inputs, enhancing the overall driving experience for Subaru enthusiasts who demand both reliability and performance.

Built with a focus on durability and engineering excellence, the ACT StreetLite Flywheel features a one-piece chromoly steel construction that minimizes failure points and ensures long-lasting performance. Heat-treated and induction-hardened, it withstands the rigors of spirited driving and repeated high-RPM operation. CNC machining and dynamic balancing deliver smooth operation, while the 124-tooth ring gear and SFI 1.1 rating provide confidence in safety and compliance. This flywheel is designed to be resurfacing-friendly and serviceable, making maintenance straightforward and cost-effective.

For Subaru WRX owners looking to sharpen their drivetrain's responsiveness without sacrificing strength, the ACT StreetLite Flywheel offers a perfect balance of lightweight design and durability. Whether you're focused on street performance or mild racing, this upgrade helps you get the most out of your engine’s power and shifting feel, elevating your Subaru ownership experience.

Features & Specifications

This ACT StreetLite Flywheel is engineered for 2002-2005 Subaru WRX models and features a lightweight design that enhances throttle response and acceleration for street and drag racing enthusiasts.

  • Brand: ACT
  • Product: StreetLite Flywheel 2002-2005 WRX
  • Part Number: Not specified in description
  • Fitment: Subaru WRX (2002-2005)
  • Material: Chromoly Steel
  • Finish: Natural Steel Finish
  • Construction: One-piece CNC Machined
  • Origin: Made in the USA
  • Weight: 13.5 lbs
  • Friction Surface Diameter: 9 inches
  • Teeth: 124
  • Heat Treatment: Heat-treated forging
  • Ring Gear: Induction-hardened
  • Rating: SFI 1.1
  • Balance: CNC Machined & Dynamically Balanced
  • Serviceability: Resurfacing-friendly

Key Benefits

  • Enhanced Throttle Response: Significantly reduces rotational inertia, allowing your WRX to rev quicker and respond more precisely to throttle inputs.
  • Improved Acceleration: Lighter flywheel helps unleash more immediate power delivery, especially beneficial in street and drag racing scenarios.
  • Durability & Reliability: Constructed from high-quality chromoly steel with heat treatment, ensuring long-lasting performance under spirited driving conditions.
  • OEM+ Fitment & Serviceability: Designed for direct bolt-on installation with resurfacing capability, simplifying maintenance and ensuring proper contact surfaces.
  • Safety & Compliance: Features an induction-hardened ring gear and an SFI 1.1 rating for peace of mind during high-RPM operation.
  • Community-Trusted Brand: ACT is renowned among Subaru enthusiasts for quality drivetrain components that deliver real-world performance gains.

What's Included

  • 1× ACT StreetLite Flywheel for 2002-2005 Subaru WRX
  • Installation instructions

Installation & Compatibility

Installing the ACT StreetLite Flywheel is a straightforward process for those with basic mechanical skills, but we recommend professional installation to ensure proper torque and alignment. The flywheel is a direct bolt-on replacement for the stock unit, with no additional parts required. It is compatible exclusively with 2002-2005 Subaru WRX models. Tuning is not mandatory but can be beneficial to optimize engine response and drivability after installation. Always verify fitment for your specific vehicle year and trim to ensure compatibility.

Which Clutch Kit is Right for Me: HD or XT? 

The choice between an HD (Heavy Duty) and XT (Xtreme Duty) clutch depends on your power level and driving style. The HD clutch is ideal for daily drivers and street-focused builds, offering a 20-50% increase in clamping force while maintaining smooth engagement and drivability. It is best suited for vehicles with mild to moderate performance upgrades that see a mix of city driving and occasional track use. On the other hand, the XT clutch is designed for high-performance applications, providing up to a 150% increase in clamping force with a more aggressive engagement. This makes it the preferred choice for heavily modified vehicles, track-focused builds, and those requiring maximum durability and grip. If you prioritize comfort and versatility, the HD clutch is the better option, while the XT clutch is the right choice for extreme performance and aggressive driving.

What’s the Difference Between a Full-Face Disc and a Pucked Clutch? 

Choosing between a full-face organic disc and a pucked cerametallic disc depends on your driving habits and performance needs. A full-face organic disc is best suited for daily driving and mild performance upgrades, offering smooth engagement, longevity, and quiet operation, making it ideal for street-focused vehicles with basic modifications. In contrast, a pucked cerametallic disc is designed for high-performance applications, featuring quick engagement, superior heat resistance, and higher torque capacity. This makes it the go-to option for racing, drifting, and vehicles with significant power upgrades. If you prioritize comfort and seamless engagement for daily use, the full-face organic disc is the right choice. However, if you need rapid engagement and superior performance under extreme conditions, a pucked clutch is the better option.

When Should I Choose a Single Disc Over a Twin Disc Clutch? 

The decision between a single disc and twin disc clutch depends on your vehicle’s power level and intended use. A single disc clutch is best for daily drivers and vehicles with moderate performance upgrades, handling up to 400-600 FT-LB of torque. It provides smooth engagement, an OEM-like pedal feel, and cost-effective performance, making it a great choice for street use with bolt-on modifications like intakes, exhausts, and tuning. Conversely, a twin disc clutch is ideal for high-performance builds exceeding 600 FT-LB of torque, offering superior heat dissipation, higher torque capacity, and faster shifts. This makes it the preferred option for competitive motorsports, aggressive driving, and vehicles requiring extreme torque handling. If you want a balance of affordability and daily drivability, a single disc clutch is the way to go, whereas a twin disc clutch is essential for high-power builds and track-ready performance.

How Do I Decide Between a Prolite and Streetlite Flywheel? 

The choice between a Prolite and Streetlite flywheel depends on your driving style and vehicle modifications. The Streetlite flywheel is designed for daily drivers and street builds, featuring slightly more mass to improve drivability, smooth engagement, and better heat dissipation. This makes it a great option for vehicles that see a mix of city driving and occasional track days. In contrast, the Prolite flywheel is engineered for racing and aggressive performance, offering a lightweight design that reduces mass for quicker revs, sharper throttle response, and faster shifts. This makes it ideal for high-horsepower or lightweight builds focused on track performance. If you need a flywheel that balances comfort and performance for versatile driving, the Streetlite flywheel is the better choice. However, if you prioritize ultimate responsiveness and fast acceleration, the Prolite flywheel is the superior option.


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ACT Performance Flywheels

ACT Performance Flywheels

ACT Performance Flywheels are built for strength, durability, and precision using a one-piece chrome-moly forging, which surpasses billet steel, aluminum, and cast iron in performance. Featuring an integral ring gear that is induction-hardened for maximum gear life, these flywheels are engineered for optimal mass distribution, ensuring excellent strength, heat dissipation, and reduced inertia. CAD-designed, CNC-machined, and computer-balanced, they deliver smooth operation across all RPM ranges. Heat-treated and tempered, ACT Performance Flywheels are crafted for reliability and precision, making them an ideal choice for high-performance applications.

DESIGN AND ENGINEERING

DESIGN AND ENGINEERING

Advanced Clutch Technology designs, engineers and develops products by leveraging decades of track and performance street experience. Advanced CAD, FEA simulation and CAM tools help ensure highly optimized performance, reliability and repeatability. These key advantages are produced by combining the best engineering and design methodologies with the latest in materials and manufacturing techniques.

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