What is the main benefit of an aluminum flywheel?

An aluminum flywheel is significantly lighter than a stock steel flywheel. This reduced rotational mass allows the engine to rev up more quickly, leading to improved acceleration and a more responsive feel.

Will this flywheel affect how the engine idles?

Lighter flywheels can cause the engine's RPMs to drop faster when you let off the throttle. This is a normal characteristic of reduced rotational mass and may require slight adjustment in driving technique.

Does this flywheel come with new flywheel bolts?

This product includes the aluminum flywheel. It is recommended to consult the manufacturer's installation instructions or contact customer support to confirm if flywheel bolts are included or if new ones should be purchased separately.

SPEC Aluminum Flywheel SH74A - 2012-2013 Honda Civic SI

Name: Spec 12-13 Honda Civic SI 2.4L Aluminum Flywheel
Brand: SPEC
SKU: spec-spec-12-13-honda-civic-si-2-4l-aluminum-flywheel-t14-4338002
Price: 398.36 USD
Availability: BackOrder

Spec 12-13 Honda Civic SI 2.4L Aluminum Flywheel

$398.36

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Spec 2012-2013 Honda Civic SI 2.4L Aluminum Flywheel. Lightweight design for improved acceleration.

Key Features

Fits 2012-2013 Honda Civic SI 2.4L.
Aluminum construction reduces rotational mass for improved acceleration.
Designed to replace the stock flywheel for a direct fit.
Well-built component for daily driving and spirited use.

This flywheel is designed for the 2012-2013 Honda Civic SI with the 2.4L engine. Please verify fitment for your specific vehicle.

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Product Details

If you're looking to get a bit more pep out of your 2012 or 2013 Honda Civic SI, especially when you're launching from a stop or accelerating out of a corner, a lighter flywheel can make a noticeable difference. This aluminum flywheel from SPEC is designed to replace your stock unit, reducing rotational mass in the drivetrain. Less mass means the engine can spin up faster, which translates to quicker acceleration and a more responsive feel when you get on the gas.

SPEC builds this flywheel from a solid piece of aluminum, which is lighter than the stock steel flywheel. This reduction in weight is key to improving the car's ability to accelerate. It's a well-built component that aims to give you that improved performance feel. While it's lighter, it's still designed to handle the demands of daily driving and spirited use, offering a good balance for the SI model.

When installing a lighter flywheel, you might notice the engine revs up more quickly, but it can also drop RPMs faster when you let off the throttle. This is normal and part of how it changes the car's driving dynamics. Make sure to consult your service manual for the proper installation procedure, as flywheel replacement is part of a clutch service.