Fidanza 04-14 Subaru WRX STi Aluminum Flywheel

Crafted from billet 6061 T6 or 2024 T4 aluminum, this Fidanza flywheel is designed to significantly reduce rotational mass compared to your stock unit. By lowering the moment of inertia (MOI), it allows your engine to rev more freely, translating into quicker acceleration and a more responsive throttle feel. This is a substantial upgrade for any WRX or STI owner looking to unlock more performance from their drivetrain.

The friction surface is made from hardened 1050 steel, heat-treated for optimal grip and durability, ensuring a solid connection with your clutch. What's really smart is that this friction plate is replaceable, meaning you don't have to replace the entire flywheel when it eventually wears out. Fidanza also uses military-spec fasteners for added reliability, which is a nice touch for peace of mind. At 40-60 percent lighter than stock, you'll notice a real difference in how quickly your car picks up speed.

This flywheel is a direct bolt-on replacement for your 2004-2014 Subaru Impreza WRX and STI. While this is a performance part, it's designed to work with your existing clutch setup. Keep in mind that when installing a lighter flywheel, you might notice the engine idles a bit differently, and you'll need to be a little smoother with the clutch engagement from a standstill. It's a worthwhile change for anyone serious about improving their car's performance feel.