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  1. 2.5 Liter/Litre Factory Motor
    I blew the head gasket on my STI just before it hit 250k miles. It was running great before that. I have the motor out of the car and I'm getting ready to pull the heads off and inspect what I can. I'm completely new to taking an engine apart and am wondering what you guys would recommend I do...
  2. General Subaru Discussion
    Hey guy i just got a 2019 sti,the car came with some light modifications.It has stock airbox with k&n filter but a cobb turbo inlet...Also the cobb bpv and cobb exhaust,these are all the mods that i can find on the car.The only part that I'm concerned about is the turbo inlet. I'm not sure What...
  3. General Subaru Discussion
    My STI has just started making a wine/chirping noise. It increases as the refs increase in the car, but sounds like it’s coming firm where the trans and the motor meet.
  4. Driving Tips & Techniques
    I was 40 rolling my 04 sti and accidentally money shifted for a slight second. Details are blurry since it happened so fast but I was in 5th shifting to 6th but went to 4th by mistake iirc (or maybe it was 4th to 3rd). Revs went to about 7500 I believe. After that I didn’t notice anything bad as...
  5. Warranty / Service Issues
    Hey all, I just put some new rotors and pads on my 04 sti today. Took the vehicle out for a test ride to make sure everything felt ok and it did. I pulled into my garage and after I turned the vehicle off it started making this ticking noise near the passenger side of the engine. The ticking...
  6. 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...
  7. 2.5 Liter/Litre Factory Motor
    Hi all, I have a 2017 wrx sti with 30,000kms, and a stock block. Among many other things it has: csf radiator /oil cooler combo Killer b pickup Killer b pan Killer b windage tray I run 6qts 5w 30 redline oil currently but I have also run motul and regular Subaru oem oil. The car doesn’t burn...
  8. Built Motor Discussion
    Hey guys. I have a 2018 STI that I’ve Been working on for about 2 years and here is my current Engine mod list. Cobb intake Cobb accessport Nameless turbo back exhaust AEM high flow fuel pump Cobb flex fuel sensor kit Cobb fuel rails Cobb 1050 injectors Flex fuel tune 333WHP/360T Just...
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