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  1. Newbie Forum
    Intro Hey, I just got my first Subaru about a week ago and it's got some issues. It's a 2011 WRX, I bought it from a ford dealership, and it's not stock. Whoever had it last had subs (they left the wiring in the car), gave it an aftermarket exhaust, an aftermarket BOV, and left me with the COBB...
    boost issue bov stutter timing wrx 11-14
  2. Problem Diagnosis
    My 2011 wrx hatch has started to make a sound when on throttle around 3,500-4,000 rpm. it sounds like a blow off valve but only happens when I'm on throttle and actually driving, not stationary. It lasts for longer than a typical blow off valve though. My car is stock besides a cat back exhaust...
    2011 boost issue issue problem wrx
  3. Problem Diagnosis
    So after I had my Grimmspeed DP installed by a professional shop I've noticed the car will only spool up to about 15 PSI and after it gets to 15 PSI it will slowly start to loss boost as I carry it through the RPMs. The car has a cobb intake, remark axel back and also cobb accessport. I'm...
    boost issue exhaust turbo
  4. Bolt-on Tech (EJ225/257 2.5L 04-07 STi 06-07 WRX)
    Recently i got my 07 wrx tuned by yumi's in santa clarita, I am pushing 20 psi and do not have any problems when going through gears 1-3. Some times have the problem in gear 4 and all the time in gear 5. I do have an exhaust leak because the gasket connecting the downpipe to the muffler is going...
    boost issue turbo
  5. Newbie Forum
    Hey guys, just installed a MishiMoto cold air intake into my 2011 Wrx. Noticed after install the slight power gain and the incredible sound difference. But i noticed since the install around 4K rpm the boost cuts? Or the car stutters. It’s weird. Seem like i hit a wall at 4K then after that the...
    boost issue intake mishimoto
  6. Problem Diagnosis
    Hey everyone, My 2011 WRX is only making about 10 PSI of boost on a good day. I've had it as high as 12, but that's it. It's currently Stage 1+ with Cobb OTS tune (91 octane) and Cobb SF intake. 97k miles stock turbo (stock everything except intake). I took the IC off and noticed a thin layer...
    2011 wrx boost issue boost leak ej255 turbo
  7. Problem Diagnosis
    I know there are multiple forums for this but none of them seem to be my exact issue or they are never solved. I have a 2003 Subaru wrx completely stock besides an exhaust. No matter what gear I am in I can only reach about 3-4 psi when the target boost is 14 psi. I once disconnected the vacuum...
    boost boost issue low boost target boost turbo
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