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  1. General Troubleshooting and Technical Help
    Hey guys! I am so stoked to finally be part of this community as my buddy just sold me his 2014 Forester 2.5i. I was thinking about doing some upgrades. He said it is "the basest of base models," and I was wondering if an aftermarket intake and exhaust would increase the HP or make the engine...
  2. EJ25 - 2.5L Non-Turbo (1998-2010)
    2000 Forester AT. What's this vacuum line go to? It's on the passenger side, comes out under the intake manifold near the wiring harness and looks like it broke off the plastic tube it was attached to.
  3. EJ25 - 2.5L Non-Turbo (1998-2010)
    Hi all, I've been thinking about having a little fun with my n/a 08' Foz and putting an intake on it, rather than a better flowing drop-in filter. I saw Cosmo Racing makes a CAI and short ram intake but there is very little info on how they perform long term. I was wondering if anybody has used...
  4. EJ25 - 2.5L Turbocharged (2004-2013)
    Hello all! I am looking for some help. Quick back story . . . spun main brgs in Apr 2020, full rebuild on my ej255, my first Subaru engine rebuild started Jan 2021. Issue: I am reassembling my intake manifold and the attached picture shows where I am fairly certain my return line is supposed to...
  5. EJ25 - 2.5L Non-Turbo (1998-2010)
    Just became an owner of a 2001 forester, it's not in the best condition, but the full damage is still being tested. It runs and drives well, but I can tell the air engine is running poorly. Noticed this outlet on my air filter box and started researching. So far, I think this is an Intake Air...
  6. EJ25 - 2.5L Non-Turbo (1998-2010)
    Hey everyone. So I have a 2001 N/A Forester S, and I've been researching for air intake options that wouldn't break the bank. Eventually I came to the conclusion of just doing some custom work because as it stands, anything is better than the way my car is currently getting air (it is drawing...
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