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

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

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by Owen H

Sticky Compression-Leakdown basic information

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

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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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PLM EWG UP-PIPE ??

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nameless downpipe vs COBB downpipe with nameless catback exhaust system

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by ben_7

Blow off valve?

2

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4K

2006 STI Leaning Out During Acceleration

12

266

38mm v 44mm Tial EWG

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257

Oil leakge question about ej257 in 2004 sti

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by Boganafoganasee

Grimmspeed ewg question

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210

06 STI p0021 new shortblock (solved)

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368

by Jedi03

Rough Idle 2018 STI WRX

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354

Power Steering Rebuild - Wheel is Extremely Stiff Now

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by Owen H

Installing downpipe - Intake or Not?

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by Owen H

Garrett Gen 2 turbos

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by Karlot

new motor installed

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295

Air pump delete

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by Owen H

Burping the Coolant System????

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by Outback Nobhed

IHI VF48 modified by IHI.

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Car cranks but won’t start

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Maf problem...Cels car wont start...

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ATP Gen2 GTX2867R or IHI VF48 High Flow

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by Karlot

My STI wont go in reverse HELP!!!

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by Jedi03

ELH Sizes and Specs.

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Preventing heat soak on my recently modified 2020 STi...

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800

by ben_7

STi Oil Filter Analysis Preliminary Data (Dimensions + Pics)

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by Scargo

2007sti spark plug question

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by Mike n

8

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Just picked it up!!

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549

by NorthernRage

P0245 Trouble Code

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by RogerPascual

2

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by [email protected]

Is this oil on my intercooler?

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572

Spun Rod Bearing

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by Jedi03

Cold start rattle/clunking

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831

Headphone users: what is this bov related noise?

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388

Subtle-Solutions Intercooler Splitter = Good Stuff!!

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Cylinder #4 Cooling Mod - Getting ready to install

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by Scargo

rear differential temp sensor

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