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ACT XACT Flywheel Streetlite- 04-21 STI / 07-09 Spec B LGT

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ACT XACT Flywheel Streetlite- 04-21 STI / 07-09 Spec B LGT

$391.00

ACT Streetlite flywheel is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT’s Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.


 

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Description

ACT Flywheels for both performance and racing are weight optimized for an ideal balance of Moment of Inertia (MOI = resistance to acceleration) and strength. ACT uses one-piece Chromoly steel forgings, the strongest manufacturing method available, to best align the internal grain structure. Streetlite versions are configured for a significant performance boost with minimal drivability compromise. Offered for select applications, Prolite flywheels are aggressively tuned for competition use. These rival the MOI of the lightest aluminum flywheels without any of the potential reliability or maintenance concerns.


Quick Specs

  • 15.5 lbs
  • 9.4″/240mm Friction Surface Area
  • Noticeably improved engine response
  • OE to mild gear rattle
  • Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability
  • One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc
  • Heat-treated forging for strength and toughness
  • induction-hardened ring gears for maximum life
  • Recommended for street and race use
  • SFI 1.1 Approved

Includes

  • Pilot Bearing – PB1004

 

Additional Information

Weight13.9 lbs
Dimensions14 × 13.6 × 2.7 in

Compatibility

  • 2004-2021 STI
  • 2007-2009 Spec B LGT

 

Installation Guide

Install Guide