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  1. Engine Modifications
    I have a 2016 wrx and was able to seek out a 2018 wrx engine. I know they are both the FA20, but does anybody know if there are issues with putting the 2018 engine into the 2016 wrx?
  2. General Maintenance, Troubleshooting & Accidents.
    I highsided my 2011 subaru wrx driving into a thick snow mound and had to use a buddies winch to get me out. I don't know if it's a coincidence, but whenever I am pulling into a parking spot and having to turn the steering wheel hard I get a rough idle and the engine bogs down (doesn't stall)...
  3. STi Technical Forum
    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...
  4. General Maintenance, Troubleshooting & Accidents.
    Hey all, 3 days ago I was driving back from Arlington and then all of a sudden my car started making noises but I wasn’t sure what the issue was and still not completely sure but have an idea it’s my catalytic converter/o2 sensors but don’t wanna assume it is and end up being wrong and ruining...
  5. General Maintenance, Troubleshooting & Accidents.
    Hi guys, So my buddy has had a 02 WRX with a turbo EJ25 rotting in his yard for 6 years. I offered to buy it and he’s basically giving it away. It turns out it’s got an EJ257 in it right now with forged internals and the 2.0 heads. The current EJ257 block has a crack in it so i’ve been looking...
  6. STi Engine Performance
    2006 STI. My dip stick popped up one day and I lost 2 quarts of oil. Found pretty soon tho. I don’t know if it had this tap prior or im just paranoid. The block is a Stock EJ257, fully hot tanked/checked, decked, flex honed. The Heads are Hot tanked/decked/ all new valves & seals (fresh oem...
  7. General Maintenance, Troubleshooting & Accidents.
    So about 6 months ago I bought a used 2015 WRX. The car has been having some small issues but nothing crazy. When I first got the car it was pushing 22.1 psi for boost. I reset my battery the other day and noticed that my peak is 12.1 psi. I even tried going through all the gears up to forth and...
  8. Engine Modifications
    Exhaust buildup on the Valves because of the TGV? Is it a real problem with the exhaust being pumped back in to the chamber over a period of time? TORQUE SOLUTION BILLET TGV DELETE is this a good mod or not Necessary?
  9. Engine Modifications
    Hey all, I rebuilt my motor recently and am about to put it back in the car. I did put a new clutch/flywheel kit in about 10k miles ago, so it's all still fairly new. However, the shop I go to said he won't put a used clutch back in with a new motor no matter how new. He says it could wear out...
  10. General Maintenance, Troubleshooting & Accidents.
    Hello all, I recently bought my 2008 Subaru WRX and have recently run into a few issues. I was experiencing some low idle and really bad MPG. I took it to a tuning shop located in Vacaville California, and they came back with the troubling diagnosis of a completely shot engine block, they...
  11. General Maintenance, Troubleshooting & Accidents.
    Looking for a Cobb accessport for a 2005 wrx pm me if u have one
  12. Engine Modifications
    So a little while back a was road tripping in my wrx and suddenly I had a destroyed bottom end. I was fortunate enough to break down at a tiny Subaru specialty shop. The owner set me up with a with a hybrid build and told me I didn't need to do anything else to it. The old block had been tuned...
  13. Tuning: Electronic Engine Management
    I need help finding where this selenoid plugs into
  14. Everyday Impreza Talk
    Could someone please help me. I drove my car home and it started making the noise as shown in the link to the video. I was just wondering if anyone has ever experienced this problem or knows what it is or could be. Thanks
  15. Engine Modifications
    Looking for advice. I apologize if this has been addressed before. I have an 08 WRX. engine spun a rod. I don’t really want to spend 5k plus to get a used engine or even doing a rebuild. I have seen many websites talking about the JDM import engine EJ20Y being a direct replacement for my EJ255...
  16. Engine Performance
    Hola, So I drive a 2015 wrx with 30k miles and I have a K&N CAI, and a Rev9 Catless 3" downpipe and an aftermarket single exit 3" exhaust with a cobb stage 2+ tune for such mods... I also just went from 17" rims to 18" so i have taken into thought the idea of my speedometer being off and thats...
  17. General Maintenance, Troubleshooting & Accidents.
    Looking for some help here. I have a 2017 WRX, the car has a full 3” Turbo Back Exhaust, Cobb CAI, and Cobb tuner. I randomly had an issue where my car will start great but immediately kill itself. Sometimes taking multiple times to actually run. Then you can feel a miss while driving. The car...
  18. General Maintenance, Troubleshooting & Accidents.
    So, I've been getting a weird noise lately coming from engine bay. I can only describe it as a ticking noise. I thought it was my imagination at first, but now I am pretty sure the car was a lot quieter when I first got it. Additionally, there has been a mild burning smell after shutting...
  19. STi Engine Performance
    04 sti with Forgred pistons (JE) and Rods ACL Race bearings TGV delete ARP Head Studs Upgraded to 11mm oil pump 850cc Injectors Walbro Fuel pump 3in Inlet- Perrin short ram intake Perrin FMIC TBE Exhaust Turbosmart EBC ATP gt3076 Externaly gated stock location External waste(Turbosmart)...
  20. Maintenance, service, and repair
    Today I took the time to put Seafoam into my car...I put 1/3 of a 16oz can into my fuel tank to clean fuel injectors, 1/3 into the engine block and 1/3 into the vacuum line of the BPV. Everything went great however after smoke had cleared, I noticed some smoke comming from near the turbo....does...
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