SPEC Lightweight Aluminum Flywheel

2008–2014 Scion xD

ST16A

Overview:

The SPEC Lightweight Aluminum Flywheel for the 2008–2014 Scion xD is engineered to enhance clutch performance and vehicle responsiveness. Designed for enthusiasts seeking improved throttle response and reduced rotational mass, this flywheel delivers precision and durability. Its lightweight construction helps the engine rev more freely, providing quicker acceleration and a more engaging driving experience without sacrificing reliability.

Manufactured with exceptional CNC precision, this flywheel ensures perfect balance and a smooth clutch engagement surface, making it an ideal upgrade for street performance and competitive driving environments.

Key Features:

SPEC’s commitment to quality and performance is evident in the design and manufacturing of this flywheel. Key features include:

• CNC machined to an industry-leading tolerance of .001", far surpassing the standard .010" for unmatched precision
• Lightweight aluminum construction reduces rotational mass for faster engine response
• Perfectly flat bedding surface to optimize clutch disc engagement and longevity
• SFI certified for safety and reliability in competitive applications
• Replaceable steel friction plate made from specially formulated friction-enhancing steel metal
• Optimized moment of inertia (MOI) tailored to balance power delivery and drivability
• Rebuildable design extends service life and reduces long-term costs
• Designed specifically for the Scion xD to ensure perfect fit and function

Construction & Design:

The SPEC Lightweight Aluminum Flywheel is crafted from aircraft-quality billet aluminum, chosen for its superior strength-to-weight ratio. This material choice reduces the flywheel’s overall weight without compromising durability or safety. The flywheel features a replaceable steel friction plate, which is precision-machined and treated to provide optimal clutch bedding and holding power.

Each flywheel undergoes rigorous CNC machining to achieve a tolerance of just .001", ensuring perfect balance and eliminating harmful vibrations that can damage the engine or reduce power output. This meticulous manufacturing process guarantees a smooth, consistent clutch engagement surface, critical for both street and track use.

Installation & Fitment:

The SPEC Lightweight Aluminum Flywheel is a direct fit replacement for the 2008–2014 Scion xD, designed to work seamlessly with the factory clutch system or SPEC clutch upgrades. Installation requires standard clutch replacement procedures and should be performed by a qualified technician to ensure proper torque specifications and alignment. No modifications to the vehicle’s transmission or engine are necessary.

What’s Included

• SPEC Lightweight Aluminum Flywheel (Part # ST16A) for 2008–2014 Scion xD
• Replaceable steel friction plate pre-installed
• Installation hardware not included (sold separately)

Ideal For:

This flywheel is ideal for Scion xD owners looking to improve throttle response, reduce clutch wear, and enhance overall drivability. It suits daily drivers seeking a more engaging feel as well as enthusiasts participating in autocross, track days, or other competitive motorsports where precision and reliability are paramount.