Competition Clutch 2004-2011 Subaru STI 15lb Steel Flywheel

Competition Clutch 2004-2011 Subaru STI 15lb Steel Flywheel

Marsoni

M251S

$197.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Competition Clutch 2004-2011 Subaru STI 15lb Steel FlywheelSKU: P2 721 ST UPC: 887753963079 Competition Clutch 2004 2011 Subaru STI 15lb Steel Flywheel Competition Clutch Lightweight Steel Flywheel 2 721 ST delivers reduced rotational mass for quicker revs on 2004 2021 Subaru Impreza WRX STI and WRX STI models. This 15lb ST series unit maintains low end torque and smooth driveability ideal for naturally aspirated street use. Pair it with Gravity Stage 1 or Stage 2 clutches for reliable daily performance. Key

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We offer a 30-day return/exchange service after receiving.
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I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.

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Reviewed in the United States on December 26, 2025

Verified Purchase

Noah

Boise, US

★★★★★ 5

MY FAVORITE SOCKS

Size: Large, Color: (001) Black / Black / Pitch Gray

I bought these originally at my local UA store and had to buy more. They are my favorite daily wear.

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Reviewed in the United States on February 25, 2026

Verified Purchase

SD-out

Fort Morgan, US

★★★★★ 4

A sock with real support and thickness!

Size: Large, Color: (001) Black / Black / Pitch Gray

I’m pretty happy with these. It seems like sock manufacturing changed 10-15 years ago, and it’s become hard to find pairs that are actually thick and durable. I bought these for an event where I knew I’d be on my feet all day, and they did not disappoint. They provided excellent support throughout the day, even while wearing shoes that typically make my feet ache after just a couple of hours. Glad to finally find a pair that feels well-made.

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Reviewed in the United States on April 10, 2026