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i-Club - The Ultimate Subaru Resource
Engine and Drivetrain Tech Forums
Engine/Power - EJ25T (STI and 2006+ WRX)
Engine/Power - EJ25T (STI and 2006+ WRX)
Discussions about the USDM 2006+ WRX and WRX STi
2.5 liter turbo
flat-four.
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Excellent STi oil filter comparison
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Egan
on 02-08-2005
09-18-2015
09:10 AM
by
de_engineered
25
47,026
Sticky
2004 2.5L turbo TSB - STi and F-XT
Peaty
on 12-23-2005
05-05-2016
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by
rahulkentonn
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Everything You Never Wanted to Know About Alcohol
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on 12-11-2013
12-12-2013
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by
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Sticky
Threads of note
Kevin M
on 07-09-2004
07-09-2004
01:40 AM
by
Kevin M
1
10,064
Normal Threads
My 11' Sti is RUINED!
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GimmeTQ
on 06-03-2011
10-26-2011
11:45 AM
by
c0rehax
180
21,070
04cali's build #2 with more mods, more boost, and more fun!
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04caliwrx
on 08-10-2009
01-12-2012
03:36 PM
by
04caliwrx
116
18,965
Cobb Tuning's initial test data and driving impressions for the 2006 Subaru WRX MT…
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Christian.
on 10-10-2005
05-29-2006
05:24 PM
by
Krinkov
101
28,191
why did it do that? -boost creep-
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asianboy101
on 01-14-2004
02-10-2005
08:54 PM
by
SuboobaruWRSEX
82
27,626
Not too shabby for a stock peashooter on the heartbreaker!
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STiYLIN
on 08-06-2007
08-24-2007
07:00 AM
by
STiYLIN
72
3,412
Whats the loudest Exhaust out there?
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ViVaSuBy
on 08-26-2007
10-30-2007
10:26 PM
by
salvator_rizzo
69
6,625
RS*R ExMag GTII series Cat-Back
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Mach5WRX
on 02-15-2004
08-24-2005
09:51 AM
by
Island Style
67
10,575
High RPM Problems Please help.
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srt2stiguy05
on 02-03-2009
01-31-2013
01:37 PM
by
b-weezy
67
7,593
Turbo Hotness Gt3076r
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kmurphy
on 09-11-2008
09-24-2009
01:22 PM
by
dunnojack
66
7,859
Did I blow it?
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STiYLIN
on 08-13-2007
08-23-2007
10:49 AM
by
STiYLIN
61
3,435
06 wrx 18g dyno results
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3rdeyevisual209
on 02-15-2007
05-20-2007
05:57 AM
by
zion
59
8,560
Will I be reaching 350whp?
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E85FTW
on 03-17-2012
04-27-2012
11:18 PM
by
johnson7
56
12,441
2006 WRX 1/4 Mile runs PLS POST HERE (tuned or untuned)
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lburrrna
on 09-12-2006
05-16-2007
04:09 PM
by
PikkaGTR
55
5,409
atp gt3076r....
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702STI
on 07-07-2008
08-21-2008
01:00 AM
by
702STI
54
6,350
Vishnu Stage 2 Dynoed
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MARKSTI
on 09-09-2004
09-18-2004
05:20 PM
by
MARKSTI
52
4,008
DCCD/ Gas mileage
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SuboobaruWRSEX
on 02-11-2004
08-21-2004
06:54 PM
by
J-REX
51
7,272
dont really know what i want??
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gindobuck
on 05-16-2008
06-09-2008
02:17 PM
by
wrxguy
50
2,689
The start of my custom exhaust.
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CenCali07STI
on 12-27-2007
02-02-2008
09:58 PM
by
theo79
50
3,899
What are major problems with STI?
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03bluevo8
on 01-25-2005
02-14-2005
09:35 AM
by
carnut
50
3,819
430hp/455lb-ft perf kit for sti?
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mr. m
on 02-07-2004
04-20-2004
08:59 PM
by
mr. m
48
6,061
Does anyone believe that this intake makes up to 30hp
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midnightwrx
on 12-05-2004
02-20-2005
07:22 PM
by
WRX-pilot
47
4,608
Cobb Tuning AccessPORT 06 WRX Manual
(
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lburrrna
on 05-17-2006
07-14-2006
08:11 AM
by
VRT Gump
47
3,340
Mods for STi
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03WRX!!!
on 07-01-2004
09-30-2004
12:19 AM
by
Kevin M
46
6,393
intake
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rallied out wrx
on 05-23-2006
05-01-2013
02:12 PM
by
Shayhan27
46
4,839
06 sti blown engine
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Armani_sti
on 02-08-2007
03-27-2007
11:18 AM
by
GT35 STI
45
11,464
APS 3.5" TBE
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49_STi
on 07-11-2005
12-05-2008
01:05 PM
by
salvator_rizzo
43
5,800
vf34 vs big 16g
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Vladi
on 09-13-2007
10-15-2007
10:51 AM
by
sigma pi
43
6,244
Adding washers to the STi for the exhaust rumble
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A170123W
on 05-16-2007
06-20-2007
01:57 AM
by
medicSTi
43
18,630
If I wanted to make 300whp...
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Irish_car_B0mb
on 08-11-2009
08-13-2009
04:33 PM
by
klenboy
43
5,764
Engine mods. What you think?
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paullawalla
on 03-07-2012
03-13-2012
05:21 PM
by
04caliwrx
42
3,728
STI tuning and Shiv
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BUDLoNG
on 09-11-2003
11-16-2003
01:12 AM
by
Wingless Wonder
42
6,432
E36 M3 vs. WRX STI
(
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Siyah
on 12-06-2003
01-20-2004
12:08 PM
by
1WCKDSTI
41
5,526
which dp is better?
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hkswrxsti1109
on 03-25-2007
11-07-2007
06:03 PM
by
subie OCD
40
3,230
ATTN STi owners - turbo oil return line can leak onto hot exhaust!
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Carguy19
on 01-06-2004
11-01-2011
12:19 PM
by
InsatiableAmos
39
48,020
K&N air filters are NOT A BENEFICIAL MOD!
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thevanitygroup
on 06-02-2006
08-23-2006
07:52 AM
by
SirWilliam05
39
12,330
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