Skip to content
✅ ⚖️ Checks and Balances Sale - Shop Deals Now ⚖️ ✅
✅ ⚖️ Checks and Balances Sale - Click Here ⚖️ ✅
Rewards Program My Wishlist Customer Support Military Discounts Bread Pay® Financing Diamond Club Membership Subimods Premier Partners
ACT Prolite Flywheel 2004-2021 STI - 600240 - Subimods.com

ACT Prolite Flywheel 2004-2021 STI

$453.00
$581.00
$581.00 - $581.00
$581.00
$453.00 - $453.00
$453.00
-22% -22%
7 In Stock, Usually Ships within 1-2 Business Days
SKU 600240
by ACT

DETAILS

ACT flywheels are lighter, stronger and safer than stock cast flywheels to meet the needs of both enthusiast and hard core racer. Material is properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. Precision machined threads will not easily strip out or get damaged like those found on aluminum flywheels. ACT engineers XACT flywheels using the latest CAD and FEA (finite element analysis) software to evaluate all design alternatives to get the best results possible. By hot forging chrome-moly steel, each flywheel yields an ultra fine centralized grain structure that is superior in strength to any other manufacturing method. ACT gives extra effort to strategically slot XACT ProLite flywheels to lower inertia without sacrificing strength and heat dissipation. All flywheels are CNC machined and dynamically computer balanced for super smooth high RPM reliability. 

This Flywheel is meant to replace your OEM Subaru flywheel. ProLite Flywheels are recommended for race applications and often can trigger a CEL. If using for Street, look into the StreetLite Flywheel. This ProLite Flywheel is 11.1 LBS.

Brand Logo
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.

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
H
H.M.
Best flywheel yet

I had installed this with my act clutch and man I wanna tell you guys how good it grabs it is definitely worth it if your looking for more torque smoothness and if it’s that final touch you want to give it to your car

Huvaldo,

Thank you for such an informative review! The ACT Flywheel mates up really well with the ACT Clutch! Continue to enjoy the pulls!

Regards,

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare