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2010 forester 2.5x prem.
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114 Posts
Discussion Starter #1
Does anyone use one on their Forester? Do they work? Also, I hear alot of back and forth on the CAI's , are they worth the money? Do they improve performance? Feedback please
 

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02 Forester L (sold) Manual
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1,220 Posts
They make more noise, but very little if any actual power. Most dyno results seem to indicate around 2hp, not really worth it on a cost/HP ratio but that doesn't stop people from buying them. The key is to get one that actually installs and pulls air in from the fender void. I see too many installed with the filter/inlet in the engine bay which is actually worse than the OEM design.
 
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