Competition Clutch Competition Clutch 2004-2011 Subaru STI 15lb Steel Flywheel
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Competition Clutch 2004-2011 Subaru STI 15lb Steel Flywheel

COMP2-721-ST
887753963079
Flywheels
20+ Units In Stock - Ships Next Business Day
$ 395.00
$ 395.00

SKU: 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 Features

  • 15lb Weight: Lightens engine response without sacrificing street manners or low rpm torque like aluminum options
  • 4140 Forged Steel: Provides heat resistance and long-term durability for consistent performance
  • One-Piece Design: Ensures perfect balance and straightforward bolt-on installation
  • SFI 1.2 Certified: Meets track safety standards for worry-free operation
  • Street/NA Focus: Works with OEM or upgraded clutches on modified Subarus

Product Notes

  • Designed for use with Competition Clutch Gravity Stage 1 or Stage 2 kits
  • Inspect ring gear teeth during clutch service for optimal engagement
  • Heavy item requires secure packaging for transit

Installation Notes

  • Professional installation recommended.
  • Use Subaru flywheel locking tool and torque to spec during install
  • Compatible with OEM flywheel bolts no additional hardware needed

This Part Fits

Year Make Model Submodel
2004-2014 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2015-2016 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2016 Subaru WRX STI Series.HyperBlue

Why Choose Competition Clutch?

  • Proven in rally and track applications worldwide
  • Engineered for Subaru EJ and FA engines
  • Backed by dyno testing and real-world validation

Frequently Asked Questions

  • Q: Does this flywheel fit 2015-2016 Subaru WRX STI models?
    A: Yes fits 2015-2016 WRX STI Base Launch Edition and Series.HyperBlue with 6-speed transmission
  • Q: What material and ring gear details?
    A: 4140 forged steel one-piece with 12-tooth Subaru ring gear pressed on for direct OEM clutch compatibility
  • Q: What warranty coverage?
    A: Limited warranty against manufacturing defects contact Competition Clutch for claim process

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Foam protected box 14 x 14 x 6 inches
  • Weight: 15 lbs

Request For Information

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