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  1. 2015+ STI Discussion
    Hello everybody. Just want to post here for others to have some comparison and to humble expectations. My goal was to see how far the stock motor and turbo can go. The limiting factor in this current build is the turbo. The tune has maxed out the turbo at about 22 psi. There is no more power to...
  2. GR-General
    Hello, I have a question. So not too long ago i had a turbo oil return line leak. I replaced it (had to take off the intercooler to access the line) but after doing so i ended up with a boost leak i replaced the intercooler piping and everything was back to normal. But now my boost levels are...
  3. General Subaru Discussion
    Hi im justin feom lebanon and im seeing a subaru sti 2005 but i have doubt that its converted all tge engine parts are sti and the interior and have dccd but doesn’t have a ic spray bouton and a water tank in the back !! 🤔 is it necessary every sti have this option and if have i have vin number...
  4. General Subaru Discussion
    Hello, I saw someone here swapped an S209 intercooler water sprayer into their RA, I thought that was pretty cool and wanted to do the same for my base STI. The problem i have run in to is i can't get the S209 intercooler water sprayer wire harness, I have everything needed for the swap but the...
  5. 2.5 Liter/Litre Factory Motor
    Hello everyone! Just bought an ‘06 sti and the turbo has been making me nervous ever since. When cruising you can’t hear it but as soon as you accelerate and give it boost the turbo let’s off this gnarly continuous loud whining sound. I was told it’s suppose to sound like that but something...
  6. Used STIs For Sale
    Mods please delete
  7. Drivetrain Components
    Hello all. First post here so apologies if my formatting, or questions in general suck. I recently purchased a 2011 sti hatch with 62k original miles. It has some modifications done, reliability foremost. The issue I am having is with the transmission. I've been told they are bricks and...
  8. General Subaru Discussion
    A month ago I purchased a new to me 2011 Subaru STI with only 40K miles! It was pretty rough but after some TLC I'm pretty happy with it. The car had a check engine light for Secondary Air Valve when I purchased the car. I installed Ktech blocking plates and plan to have those engine codes...
  9. 2015+ STI Discussion
    So I have a '20 STI that comes with steering responsive headlights (SRH). I've been wanting to get some aftermarket headlights, but I don't want to get rid of the SRH. Subispeed's website mentions there's a sticker to cover up the SRH dash light for one of their products, but I didn't know if...
  10. General Subaru Discussion
    Hi guys, This is my second STI I’ve owned and I’ve never dealt with an issue like this before and it’s driving me crazy. 2 months ago my car was running rough so I changed the spark plugs (65k miles). I’ve driven the car 3 times since then and everytime I’ve driven it my Fine Knock Learn goes...
  11. General Subaru Discussion
    Hey guys, Recently as of about a few days ago my 04 sti will stutter on startup. My battery was getting close to the end of its life so I decided to replace it to see if that might have been the problem. I’m wondering what might be the issue as it’s still doing it. Starter? I’m having the...
  12. Engine/Drivetrain/Performance Parts For Sale
    This motor is built to support 1000whp and features 272 cams, killer b oil pan, firelock head gasket, and half inch heads studs. Fully forged internals and short block by m45 as well as brand new heads machined by m45. Long block has never been used or installed. I am selling it because I no...
  13. DIY Mods & Installations
    My driver’s side rear quarter glass got busted last week. Nothing was stolen - the jerks got spooked and took off before they could take anything. I purchased the OEM glass from Subaru directly but can’t find ANY install instructions at all on the internet. I’ve been searching all day. Does...
  14. General Subaru Discussion
    Hi I’m a newbie I’ve read 100 forums about my issue and can’t figure out what is causing this. I have a 2005 sti i bought this car recently and slowly been working on her. When i reset ecu i can get 3-4 pulls in at 14psi of boost before my ecu kicks in and puts me on 5-7 psi “wastegate” boost...
  15. General Subaru Discussion
    So I was looking under the dash on the drivers side of my 2016 sti and noticed this box with what looks like a dial and max and min values on it its spliced in to a few wires off the ecu its also has at least 2 thicker gauge orange wires not sure where they are connected to any help would be...
  16. General Subaru Discussion
    Anyword on Access port for 2021 STI? Any good tuning shops in Tampa?
    sti
  17. Engine/Drivetrain/Performance Parts For Sale
    Selling a used Cobb SF Intake with Airbox. Installation hardware ordered new from Cobb and unused. Airbox shows wear consistent with use. Complete kit for 08-14 WRX/STi and 09-13 FXT. Will also fit the following applications: Cobb SF Intake 08-14 WRX (15+ STi) 09-13 FXT Cobb SF Airbox...
  18. Built Motor Discussion
    Looking to buy a 2011 Subaru Impreza WRX Hatchback. The owner has told me the engine was rebuilt and the process on how it was broken in. I have attached all the documents relating to the repairs and processes to get it running back to normal. The owner said that all of the necessary actions...
  19. 2015+ Member Classified Ads
    New, never opened Quick Touch wheel touch up paint. I sold my car and have no use for it. $10.00
  20. 2015+ Member Classified Ads
    Thule Roof Rack for 2015-2021 Subaru WRX STI. In excellent condition and includes all hardware to mount on the car. Two keys included. Price: $350 obo Location: Fort Belvoir/Lorton, VA No shipping. Part #’s Thule Evo Wing Bar - part # 118 Thule Rapid Podium Foot Pack kit - part # 183131
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