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  1. EJ25 - 2.5L Turbocharged (2004-2013)
    Hey guys, have a ej255 with a td04. Previous owner told me that the car is tuned to 17psi at 169kw at the wheels. Is it possible for to install a mbc and lower the boost? Or do I have to go another route like adjusting the waste gate actuator? Or getting it tuned lower?
  2. EJ25 - 2.5L Turbocharged (2004-2013)
    I recently bought an arashi adjustable wastegate to put on my stock 06 xt and I was wondering if there's anything special I need to do while installing it as far as set up goes. Car was boosting slightly erratic and had quite a bit of lag. Would build boost and dump it right pretty damn quick. I...
  3. EJ25 - 2.5L Turbocharged (2004-2013)
    For probably the past 5k miles or so in my 04 Xt with 220k, I've had what could best be described as a supercharger whine coming from near the firewall presumably the intercooler. I usually only notice it when I am in boost, accelerating above 1/2 throttle above 3k rpmish, when driving. The...
  4. EJ25 - 2.5L Turbocharged (2004-2013)
    Alright so I'm having a really annoying issue happen with my 2004 Forester XT 5mt. I can go forever without losing boost and then all of a sudden on a 180 mile trip my boost gets cut in half about half way through. It doesn't happen all the time though. I've noticed that it only happens when...
  5. FA20DIT - 2.0L Direct-Injection/Turbo (2014-2018)
    I recently purchased a '17 XT and have fallen in love. By far the best car I have owned, but I want to make it better. So far I have upgraded to 20mm STI RSB, added Moog end links, and perrin steering dampener lockdown. I'm very happy with the subtle improvements to handling. I eventually want...
  6. Motor Conversions
    Hi, I have to replace the engine of my car, they broke into the car, tore the wiring harness and they couldn't rewire (JDM). They offer me a 2.5XT engine, another seller sells the full Fozzy JDM STi parts, but I simply dislike the turbo "kick" I would love to install a 2.5XT or STi engine, run...
  7. General Troubleshooting and Technical Help
    Hi guys, Long time lurker, first time poster. Vehicle: 2010 SH Forester XT 2.5L EJ25 Manual Recently I've been experiencing an issue that comes on into 5-10 minutes of driving. All of a sudden there is loud air like noise when accelerating, and especially louder when it reaches the 2.5K rev...
  8. EJ25 - 2.5L Turbocharged (2004-2013)
    OK, I finished my STI conversion with catless up pipe and downpipe, full exhaust, vf39 turbo, walbro fuel pump, 2018 STI intercooler and BPV. However, when I floor it and I get close to redline my engine bucks and I get the check engine light for code P0244, aka overboosting. Found out that I...
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