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Old 02-06-2001, 10:25 AM   #1
Scooby Newbie
Member#: 4011
Join Date: Feb 2001
Aspen White

Post does 2002 wrx(us) have same piston as the sti?

I'm courious if the sti has special piston coating to handles more boost. I know they have the same valvetrain but i don't know if the bottom end are the same.

thanks in advance.
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Old 02-06-2001, 10:46 AM   #2
Scooby Specialist
Member#: 524
Join Date: Nov 1999
Location: WA
04 STi


The Sti likly gets a better Forged piston than the base WRX. I doubt it has any coatings as coatings are not detonation resistant, and so they are a REALLY bad idea for a car sold to the general public.
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