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#158: 06-28-2005, 06:35 AM
Title: Junior Member
Posts: 41
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I strongly beleive that this is an emissions related issue comming from the pre converter. The other 2.5 turbo models in the Forester and STI don't have any restriction on the upper exhaust, thereby don't have this studdering issue.

I for one am having my up-pipe replaced, and if this resolves the issue I will have better grounds to fight Subaru in court if necessary.