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Old 10-18-2010, 12:02 AM   #1
AW Sti
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Member#: 202929
Join Date: Feb 2009
Default Are 04 cams different from 05-06??

I have a doubt because sometimes I see sets of cams selling for 04-07 STi (USDM AVCS) and in some others I see them listed as 05-07 or 05-06

Are 2004 USDM STi different from the 2005-2006 USDM STi??
Would I have any problems buying camshafts for a 04 if they're listed as 05-06?
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Last edited by AW Sti; 10-18-2010 at 09:55 AM.
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Old 10-18-2010, 09:07 AM   #2
Scooby Specialist
Member#: 108089
Join Date: Feb 2006
Chapter/Region: MWSOC
Location: Minnesota
2003 WRX
NF Performance


you'll be fine
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Old 10-18-2010, 02:05 PM   #3
jason miller
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Join Date: Sep 2007
Location: W Laf, In
2003 WRX


I believe that starting in '06 they made the cams hollow to reduce rotational weight. I read once that the valve lash should be set slightly differently depending on whether you have the 04-05 or '06 up cams, but I can't remember the specs. Otherwise, the lift/duration should be the same no matter what year.
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