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Old 02-27-2008, 02:31 AM   #24
WRX-17
Scooby Newbie
 
Member#: 98725
Join Date: Oct 2005
Chapter/Region: SCIC
Location: Tustin, CA
Vehicle:
2005 WRX/STi
Aspen White

Default

You cannot interchange wrx and sti clutches ans flywheels.

"The diameter of the WRX flywheel is smaller (230mm compared to 240mm) than the STi flywheel."

Besides the diameter differences, they are different styles. the sti is a 2-step and the wrx has no step. plus the sti has 3 more bolt holes for the pressure plate. Here is a pic that I took to show the difference. not even close...i would suggest going for the sti stuff since its something not easy to change. but if youre not putting or planning on THAT much power and are on a tight budget...theres no problem with wrx flywheel, clutch, pressure plate. they just dont hold as well.

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