Performance Street Sprung Disc

• 2004–2021 Subaru | WRX STI

ACT Performance Street Sprung Clutch Disc (3000503)

3000503 is a performance street disc and the most popular disc purchased. It features premium organic materials with high copper content for better heat transfer. Performance street discs allow for quicker shifting and smooth engagement. These discs feature a reduced marcel for faster shift action to complement ACT pressure plates. ACT spring-centered assemblies use bushings and cone springs similar to factory clutch discs. This creates frictional dampening, which improves clutch life and reduces noise. Quiet operation with increased strength and reliability.

Specifications

• Product weight (lbs.): 4.5
• Diameter (in.): 9.4
• Diameter (mm): 240
• Disc material: Organic
• SFI: 1.1
• Warranty: 12 months

Characteristics

• Feel: Smooth engagement, quicker shifts, OE to mild gear rattle
• Life: Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces
• Quality: Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure
• Recommended Use: Recommended for street and race use
• ACT Difference: Steel-backed linings for higher burst strength, reduced marcel for quicker shifts

Fitment

• 2004-2014 Subaru Impreza WRX STI (Limited 2007, 2011-2014; Special Edition 2010)
• 2013-2021 Subaru WRX STI (Base 2013-2021; Limited 2015-2021; Sport-tech 2013-2014, 2017-2021; Sport 2017-2021; special editions incl. Type RA 2018)
• 2007-2009 Subaru Legacy GT spec.B
• Subaru Impreza WRX STI [JDM] 2002-2005

Q: Best street clutch disc for a 2004-2021 Subaru WRX STI?
A: The ACT 3000503 Performance Street Sprung Clutch Disc is recommended for street and race use and fits 2004-2014 Subaru Impreza WRX STI (Limited 2007, 2011-2014; Special Edition 2010) and 2013-2021 Subaru WRX STI (Base 2013-2021; Limited 2015-2021; Sport-tech 2013-2014, 2017-2021; Sport 2017-2021; special editions incl. Type RA 2018).

Q: Does the ACT 3000503 clutch disc fit a 2007-2009 Subaru Legacy GT spec.B?
A: Yes. It fits the 2007-2009 Subaru Legacy GT spec.B. It also fits the JDM Subaru Impreza WRX STI 2002-2005.

Q: Is the ACT 3000503 performance street disc good for a street-driven 2004-2021 Subaru WRX STI?
A: Recommended for street and race use. Feel: smooth engagement, quicker shifts, OE to mild gear rattle.

Q: What are the specs of the ACT 3000503 clutch disc for a 2004-2021 Subaru WRX STI?
A: 9.4 in. (240 mm) organic disc, 4.5 lbs., SFI 1.1, 12 months warranty. Steel-backed linings for higher burst strength and reduced marcel for quicker shifts.

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