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 Compression-Leakdown basic information

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38K

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

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32K

by Undyjr

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

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704K

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

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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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50K

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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117

84K

KillerB header users - any heat damage?

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7K

by killerbmotorsport

Garrett Gen 2 turbos

5 6 7

137

80K

by Karlot

ej257 from 2004 compatible with 2011?

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190

2016 WRX STI best oil?

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21

21K

Cross flow radiator conversion?

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225

by killerbmotorsport

2017 STI (OEM?) EGT Temperature off the obd2/CAN bus?

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by MTUBS

2017 sti oil pressure issue

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858

0

219

Secondary Air Pump Closed Bank 2 fix suggestions? Cel P2443

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16K

by Jeffj

Just a wittle Stock vs. Stage 1 dyno - 2020 STI

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1K

LIMP/SAVE MODE STi!!!???

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634

by ramminjammin2

'18 Throwing P0011, P0021, P000A, P000B, P000C & P000D CEL's

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Misfire at idle all cylinders counting roughness haunting idle

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1K

by SlowInFastOut

TMIC Bracket missing - passenger side

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560

by Karlot

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

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969

by Jedi03

0

301

by kgozi

Intercooler, oh how I hate thee!

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2K

by iwasajedionce

18 wrx ..getting frustrated some help __

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345

Throwing a p2007 code please help

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249

Elh or not? & Killer bed oil pan

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1K

by Karlot

Grimmspeed ewg question

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534

by seattlegreysti

Massive boost creep can't get it tuned need help

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2K

Boost controller?

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456

by Owen H

aos systems - to splooge or not to splooge

2

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8K

by Tifosi

Stock 2 Piece w/ Crosspipe or Header

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436

by Karlot

3

767

nameless downpipe vs COBB downpipe with nameless catback exhaust system

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by [email protected]

Total cost of built block questions

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8K

by Karlot

PLM EWG UP-PIPE ??

2

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1K

by Owen H

2

35

1K

2020 subaru sti 3500 miles CEL on while driving local P0346

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507

Blow off valve?

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28

4K

2006 STI Leaning Out During Acceleration

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404

38mm v 44mm Tial EWG

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445