2.5 Liter/Litre Factory Motor | IW STi Forum

GR-Exhausts

GD-Exhausts

Discuss anything related to the exhaust system, like muffler, catback, and turboback exhaust systems.

Sticky AVCS Gear Cleaning Guide! (Read this if you spun a bearing!)

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by Scargo

Sticky Read this before you create a new thread about BOVs (Blow-off valves)

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126K

Sticky The Official STi engine Venting, A/O Separators, and Catch Cans Thread!!

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691K

Sticky Your answer to "I want 400whp" (or more?!)

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by tylerandreas

Sticky Motor Oil - All Chapters, Inclusive -Hat Tip to Ferrarichat.com

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Sticky Compression-Leakdown basic information

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Sticky Everything you need to know about E85

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Sticky Extremely good info for first time turbo owners (Determining Turbo Serviceability)

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Sticky Comprehensive Subaru CEL Code List (XLS File Attached)

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by 2.5 turbo hyped

Sticky UPDATED 03/03/10: Planning a turbo build? This is roughly what it will cost you.

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82K

Hi guys ,need helps about oil pressure

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112

Overboosting - P0244 and the occasional P0108

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111

Dreaded Wastegate Crack!

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by killerbmotorsport

Boost spike when shifting after tuning GRF AT model.

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167

2012 STi- cyl 4 misfire, new spark plugs- Vacuum line leak?

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221

Iag equal length headers 2015 sti

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413

DCCD "O" flashing, ABS light on (not working), brake light on, and speedo fluctuating

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5K

by 06stidriver1234

Dyno test: ETS V2 header vs. KillerB Holy Header @33psi and @40psi

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465

P0303 & occasionally P0304 after engine swap

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481

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291

2005 WRX STI With Low Compression across all cylinders

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560

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8K

AC compressor clutch making noise

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911

Sti really jerky at 2500-3000 rpm

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82K

2007sti spark plug question

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[Problem Resolved/Figured out] Under boost and Possible Vacuum Leaks and Strange part?

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by Sjp831

2012 STI with 63k throws a rod bearing

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2008 GRB STi Radio Face Shut Off, Speakers Pulsing, Airbag Light, AND OTHER THINGS HAPPENED - Need HELP TROUBLESHOOTING

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by RAE129

More problems! LOL: metal vibration sound @certain RPM!!!

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2010 STI Lifter knock (Solved)

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661

IHI VF48 modified by IHI.

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7K

2017 sti oil pressure issue

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556

Easy 10% power gain: wastegate as exhaust bypass

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718

2019 STI sprung an oil leak

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439

by JSR84

Running rich and damn at 0.562

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343

Replaced my Oil Pickup Tube today....

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3K

by killerbmotorsport

RPM fliteering and engine shaking at 5000-6000 rpm! :(

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3K

by Scargo

what does it mean if your engine block has an R dot stamp on it?

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4K

Camshaft Position Sensor Code + Rapidly Burning (& dirty) Oil = Ringland Failure?

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534

AVCS Banjo bolt filters

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27K

Tomei ELH install

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634

by Scargo

Garrett Gen 2 turbos

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70K

high idle while in gear, coasting, and clutch fully depressed

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Help! 20G fitment issue

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