{"product_id":"act-streetlite-steel-flywheel-2004-2015-sti-600235","title":"ACT Streetlite Steel Flywheel 2004-2021 STI","description":"\u003ch3\u003eACT Streetlite Steel Flywheel 2004-2021 STI | Performance Enhancement | Drivetrain Upgrade\u003c\/h3\u003e  \u003ch4\u003eOverview\u003c\/h4\u003e \u003cp\u003eThe ACT Streetlite Steel Flywheel is a high-quality upgrade designed specifically for Subaru WRX STI models from 2004 to 2021. This performance-oriented flywheel reduces rotational mass, resulting in quicker throttle response, more precise engine engagement, and smoother acceleration—ideal for enthusiasts who want to optimize their daily driver or spirited street car. Crafted from hot-forged chrome-moly steel, it offers superior strength and heat tolerance compared to OEM cast flywheels, ensuring durability under demanding driving conditions.\u003c\/p\u003e \u003cp\u003eBuilt with a focus on engineering excellence, the ACT Streetlite Flywheel features precision CNC machining and dynamic computer balancing. This meticulous manufacturing process guarantees high RPM stability and long-lasting reliability, making it a dependable choice for Subaru owners who demand performance without sacrificing safety or daily drivability. Its design lowers inertia while maintaining rigidity, providing a noticeable improvement in engine response and overall drivetrain feel. Whether you're tuning for more power or simply upgrading your OEM component, this flywheel enhances the driving experience for Subaru enthusiasts who value quality and performance.\u003c\/p\u003e \u003cp\u003eBy reducing the rotational mass, this flywheel allows your STI to rev more freely, translating into quicker acceleration and more responsive throttle control. Its compatibility with stock and aftermarket clutches makes it a versatile upgrade for those looking to improve engagement and durability. Perfect for street-driven Subarus, the ACT Streetlite Steel Flywheel offers a reliable, high-performance solution that elevates your vehicle’s drivetrain dynamics without compromising everyday usability.\u003c\/p\u003e  \u003ch4\u003eFeatures \u0026amp; Specifications\u003c\/h4\u003e \u003cp\u003eThis ACT Streetlite Steel Flywheel is engineered for Subaru WRX STI models and features a hot-forged chrome-moly steel construction, delivering increased strength and heat resistance for demanding street driving and tuning applications.\u003c\/p\u003e \u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e   \u003cli\u003e \u003cstrong\u003eBrand:\u003c\/strong\u003e ACT\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eProduct:\u003c\/strong\u003e Streetlite Steel Flywheel 2004-2021 STI\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003ePart Number:\u003c\/strong\u003e (Refer to product details for specific part number)\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eFitment:\u003c\/strong\u003e Subaru WRX STI (2004-2021)\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eMaterial:\u003c\/strong\u003e Hot-forged chrome-moly steel\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eFinish:\u003c\/strong\u003e Natural steel with protective coating\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eConstruction:\u003c\/strong\u003e CNC machined and computer-balanced\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eKey Benefits\u003c\/h4\u003e \u003cul\u003e   \u003cli\u003e \u003cstrong\u003eEnhanced Throttle Response:\u003c\/strong\u003e Reduces rotational mass for quicker engine revving and more immediate power delivery, improving street driving feel.\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eDurability \u0026amp; Heat Tolerance:\u003c\/strong\u003e Constructed from high-strength chrome-moly steel, offering superior heat resistance and longevity under spirited driving conditions.\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eReliable Fitment:\u003c\/strong\u003e Precisely CNC-machined with high RPM stability, ensuring a seamless upgrade for your STI without compatibility issues.\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eImproved Drivetrain Engagement:\u003c\/strong\u003e Lower inertia enhances clutch engagement and overall driving feel, making shifts smoother and more predictable.\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eOEM Replacement Quality:\u003c\/strong\u003e Designed to match or exceed OEM standards, providing peace of mind for daily drivers and performance enthusiasts alike.\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eWhat's Included\u003c\/h4\u003e \u003cul\u003e   \u003cli\u003e1× ACT Streetlite Steel Flywheel\u003c\/li\u003e   \u003cli\u003eInstallation hardware (if included in kit)\u003c\/li\u003e   \u003cli\u003eInstallation instructions\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eInstallation \u0026amp; Compatibility\u003c\/h4\u003e \u003cp\u003eInstalling the ACT Streetlite Steel Flywheel is a straightforward process for experienced DIY enthusiasts with basic mechanical skills. However, due to the importance of proper clutch engagement and drivetrain balance, professional installation is recommended. The flywheel is a direct bolt-on replacement for OEM units on Subaru WRX STI models from 2004 to 2021, ensuring a perfect fitment and reliable performance. Tuning your ECU or clutch setup may be beneficial to maximize the benefits of reduced rotational mass and to ensure optimal drivability. Always verify compatibility with your specific vehicle year and trim before installation.\u003c\/p\u003e","brand":"ACT","offers":[{"title":"Default Title","offer_id":50501052530974,"sku":"act600235","price":694.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/6730\/2174\/files\/act-streetlite-steel-flywheel-2004-2021-sti-600235-191027.jpg?v=1768061143","url":"https:\/\/subistyle.ca\/products\/act-streetlite-steel-flywheel-2004-2015-sti-600235","provider":"Subistyle","version":"1.0","type":"link"}