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U
Sticky **PSA** So you have a >400whp fully built setup: Protecting Your Investment
3 4 5
83
72K
 by yamahaSHO
T
Sticky To Read If You're Considering Forged Pistons
18
15K
 by S2000_Europe
Kevin
Sticky Subaru 2.5L Engine/Motor Building 101
3 4 5
86
121K
 by user1029
J
IAG Stage 2 Block
2
22
4K
 by mheyman
williamsartor06
What is this in the engine bay?
13
1K
 by Scargo
TorqueStable
NEW GRIMMSPEED BB500 TURBO ?
2 3 4
69
6K
 by TorqueStable
21STI
Autocross Build Completed
14
705
 by nissanfanatic
21STI
A/C Vent issue
4
338
 by 21STI
P
04 WRX wagon, need mechanic in st.louis
6
238
 by Bwill9886
praha-sti
ATI Damper Install Question?
19
698
 by praha-sti
TenTurbo
Low performance on dyno after the build.....very confused!
2
27
3K
 by Karlot
purekeyz
Very Bad Leak Down Test and Okay Compression Test - Need to figure out what is wrong.
2 3 4
62
2K
 by praha-sti
got2boostit2
Anyone Used Broken Boxer Repair Engines?
7
6K
 by Karlot
405HP_Z06
EJ25 706 Series Case Bore Surface Texture
0
326
 by 405HP_Z06
A
New build with misfires please help
2
21
6K
 by muller_777
warrenn.brandon
Built Motor Rally Spec 07 STI
2
20
957
 by warrenn.brandon
muller_777
ALL cylinder misfire, new motor
19
2K
 by muller_777
benrdoherty
Aftermarket J-pipe question
2
260
 by Karlot
TheFlamingNipp
Has anyone setup their car with the ETS Front Mount Intercooler for 2015+ STIs along with Cobb Redline Intake?
11
987
 by TheFlamingNipp
Punisher7
2015 STi 550-600whp+ Build In Process
2
23
3K
 by Punisher7
S
Smoke on start up and idle with new motor
9
567
 by STI123
SLAYER7899
7500 miles on built motor blew head gaskets😮‍💨
2 3
46
3K
 by SLAYER7899
SLAYER7899
04 STI premature headgasket failure...
7
715
 by 86main
1
2011 Engine Rebuild
3
595
 by AustinSedz
86main
2011 STI Build using Haltech elite 2500
11
1K
 by 86main
S
And boom 2012 motor dead :(
2
23
2K
 by 86main
Olgreygsti
Rebuild (not broken) heads / block - advice
4
468
 by AustinSedz
a102930
just picked up a 2020 STI, build questions.
10
915
 by enoxard
ChefPhil
Removing the crash beam
14
2K
 by ChefPhil
S
Low boost problem
7
813
 by Jay11STI
ChefPhil
BCP 500+
7
1K
 by got2boostit2
kevin0207
2013 sti won’t start unless given gas
0
520
 by kevin0207
1
Coolant Overflow shooting coolant during WOT
17
2K
 by user1029
STi Enthusiast 007
Need help buying new spark plugs and coil packs
2
882
 by Karlot
Scorpionthumb
Buying a built motor but evidence of scoring of crank
4
770
 by Scorpionthumb
Z12scobaru
Overboosting?
12
659
 by Z12scobaru
W
FMIC with MAP setup
19
970
 by WaltSTi19
G
P0011 and p0021 Iag closedeck built heads +1valves bc stage 2 cams
1
780
 by yamahaSHO
Built Motor Discussion
Discuss building, modifying, or swapping your engine internals or aftermarket engine upgrades.
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