ACT 600550 Streetlite Flywheel 9.4in for 08-15 Mitsubishi Evo X 2.0L

Vehicle Fitment

• 2008-2015 Mitsubishi Lancer Evolution X (Evo X; AWD, 2.0L 4B11T Turbo I4)
• Manual transmission only (5MT)

Features

• Lightweight Streetlite performance flywheel designed for improved throttle response
• Forged chromoly steel construction for strength and durability
• Dynamically computer-balanced for smoother high-RPM operation
• Induction-hardened ring gear for maximum durability and starter mesh life
• One-piece design eliminates failure points common in multi-piece flywheels
• Heat-treated forging enhances toughness under repeated loads
• Improves acceleration response and reduces rotational mass versus stock
• Recommended for street, performance, and drag applications

Specifications

• Brand: ACT (Advanced Clutch Technology)
• Part Number: 600550
• Flywheel Type: XACT Streetlite performance flywheel
• Friction Surface Diameter: 9.4 in / 240 mm
• Material: Forged chromoly steel
• Weight: ~11.8-13.1 lb (reduced vs OEM) depending on measurement methodology
• Tooth Count: 114
• SFI Rating: 1.1 (race certification)
• Direct-fit replacement for manual transmission Evo X models

Included Components

• 1x ACT XACT Streetlite Flywheel (600550)

Product Description

The **ACT 600550 Streetlite Flywheel** is a high-performance, lightweight crankshaft flywheel engineered to enhance throttle response and acceleration in 2008-2015 Mitsubishi Lancer Evolution X vehicles equipped with the 2.0L turbocharged 4B11T engine and manual transmission. By significantly reducing rotational mass compared to the heavy OEM flywheel, this forged chromoly Streetlite design delivers quicker rev-ups, sharper power delivery, and more engaging driving dynamics while maintaining strength and durability for spirited street and drag applications.

Constructed from forged chromoly steel and dynamically balanced for smooth operation at high RPM, the ACT Streetlite flywheel includes an induction-hardened ring gear to maximize starter engagement life and resist wear. Its one-piece build minimizes potential failure points and improves heat transfer from the clutch disc, while still allowing the unit to be resurfaced if needed. This direct-fit performance upgrade is ideal for Evo X owners looking to improve engine responsiveness without sacrificing reliability.