- Help, boost doesn't build until 4500RPM now
- utec or accessport?
- Searching for a turbo....post vf39 spec!!
- Question On Cobb Tuning??
- BLITZ Blow-off Valve DD
- SCC article of teh STi spec C vs teh evo fq300
- and the fun begins...h20 and o2
- water/air questions...
- BIG INSTALL and now a few questions...please help!
- Perrin Question
- STi 2.5T VS. GT 2.5T engine
- Exhaust question: comparing the B&B...
- FMIC as only mod. What should I expect?
- borla install notes....
- CEL codes.....help!
- anyone have pics of a Helix cat-back installed?
- misfire on high lead race fuel
- Any kind of "Complete kit?"
- exhaust
- Help My STi won't do more than 150 mph
- Exhaust Manifold Part Numbers
- something happened
- exhaust leak possibity question?
- Expected gains with PDE catless DP - no reflash
- STI iridium race plugs
- another intake question...
- reducer for 3" downpipe to stock STi cat-back?
- over redline?
- STI Utec Stage II map, check out my data log
- Is it just the weather or is my car a freak?
- Boost line question
- sr55 aps on the 2k4-5 sti....
- Wingless
- turbo question
- Help me decide: PDE/Cobb/Helix/Stromung DP (All Catted)
- Any try an 18G on an STi yet?
- Aftermarket headgaskets
- Broke hard oil line to turbo...HELP!
- noob turbo sti Qtion
- weird revving problem
- Help me please! Not my STI!!
- stock STI on different dyno's
- Anyone know what exhaust this is?
- Porting Stock Turbo - Who and where???
- throttle body questions
- Maximum diameter turbo inlet that fits under mani?
- Which heads/cams to go with?
- STi TMIC brackets
- A run-through of an STi clutch install?
- Turbo Back Exhaust WRX v. STI Same Fit?
- all the gaskets for this job are...
- MY FXT set up.
- Catted of Not with Green
- Helix and Vishnu
- Nos in sti
- Fuel Gauge issue... is this common?
- Best New Turbo? What to go with?
- sti stock turbo HP
- Greddy EVO2 or SP2 fitment problems?
- Copper Plugs for 2.5L Turbo
- car getting slow
- GT32 Twinscroll Dyno Chart
- Cylinder misfire after Perrin injector mod?
- Need part # of this hose!
- TurboXS Exhaust with 4 inch bell mouth
- from wrx to sti
- Poll: Whats your compression
- Help with header install
- Couple ?'s on PE850s
- help with downpipe
- Valve Stem Height Specs needed on STI heads - any help ?
- autospeed downpipe doesn't fit
- Need a more quiet exhaust for my Sti
- VF39 spooling Q
- TXS TBE on '05 STi Question.
- How much of a diff would I feel coming over to the STI from a...
- Up-pipe for Green??
- Gutting the cats on a stock 04 STi...
- 04 STi Cobb AP Initialization issues
- What pistons&rings to use??
- STi uses antifreeze
- Question about Air Intake
- What did you pay???
- Longer Intercooler Hose?
- TXS TBE Questions ... if you have one, come on in!
- Greddy E-Manage?????
- EM or reflash with stock car.
- '05 NOT Slower than '04 - Dynapack Numbers Inside
- How many times did ur motor blow up?
- looking for a wrecked STI
- Got a Knocking on my STi
- TurboXS exhaust + Superzilla = need external
- What are your EGTs while cruising in 4th??
- Evo 712hp on Turbo magazine
- does any of you have the same problem?
- Another Newbie Turbo question
- TXS stealthback mid pipe really low!?
- is it ok to take off the air flow meter on USDM sti?
- Looking for 400whp on Sunoco 94...need opinions!
- Had a blown seal on my turbo and replaced it. Now what?
- 2005 Subaru WRX STi Mods???
- Another question for CP forged pistons!
- Clicking noise coming from rear of the car when turning
- loud noise after 100mph
- hks exhaust questions, or any others
- Shifting and Dropping the Clutch
- fuel leak from gas tank area
- hks gt-rs
- Cobb Stage 2 vs. Reliability
- Cruise Control Light Blinks After Turbo Back Installation??
- Does the uppipe need to be replaced with borla header
- fuel pump ???
- Might be selling my wrx :(
- Intercooler, WRC style
- NISMO injectors VS MZM 740
- WRC Exhaust
- Thanks TXS ...
- Intake??
- STi Drop-in Air Filter
- Will my DSMs fuelpump fit onto my Subie?
- Should I port my Green's Wastegate?
- APS tapered UP-PIPE (anyone?)
- Best mods to start with on the 05 STI?
- How much hp/tq for the following parts?
- Port Matching Headers - What exactly is involved?
- apexi boost gauge problem
- still creeping?
- Need help on broken VF39 turbo!
- center pipe replacement HP??
- engine on, dip stick out
- Tapping Manifold for EGT sensor
- Is a boost controller necessary for my setup?
- Which Catted DP and Which Cat-Back Exhaust Make The Most Power?
- fuel question
- Need Part Number for Block - Header Gasket
- vac line
- factory jdm ver 8 turbo info..
- Problem gettin green to fit??
- Best injectors??
- Octane-STI
- JDM & USDM Intercoolers
- FP GREEN ~ Technical Data
- EWG UP for gtspec verII headers 3bolt
- Quick question about walbro install..
- Scanning the STI
- About forged pistons~~
- sti modding?!
- Any way to get a Cobb TBE without the wait?
- APS 3" vs TurboXS exhaust?
- DEFI H2O Temp Gauge Install
- anyone use the PDM O2 Sensor Extension to fix P0420 cel?
- CEL and flashing cruise on bone stock STi
- Is this boost creep????
- What d/p to get??
- How much boost with the stock STI BPV hold?
- Let me know about your aftermarket exhaust
- Does this look right to you?
- max aftermarket injector size before new fuel pump crucial?
- PDE DP install info
- Helix Downpipe User: Help!
- compressor maps: the low down?
- Sti boost setting
- Anyone else with 05 STI Accessport??? Issues...
- Anyone with EcuTek on their STi's??
- will this work?
- New STi Owner, just a few quickies, as I search through the board...
- im posting for theSTIguy27
- Power???
- Cat-Back Exhaust Install Tech....
- Did my dealer screw up my oil change?!?
- 05 STi Throttle Body Adapation?
- STI Stock BOV
- slow cold weather start
- STi clutch pedal adjustment.
- Which BOV for my 20G?
- turbo MPa in 10 degree weather
- Egt Install question
- Stock 05 STi - Poor cold weather performance
- Anyone running the new K&N Shortram on STI?
- noob question regarding utec + typhoon intake
- Please delete
- Anyone have experience with Turboengineering (TEC) turbos?
- cobb tuning accessport
- Heat shield fitment Question
- accessport and typhoon
- sti with worx bov
- sti exhaust question
- Basic Upgrade questions...which do you prefer for optimal driving?
- sti exhaust question
- FMIC kits available for the STI?
- Might change turbo to VF34, would i notice a difference in power?
- Wastegate Port
- Guestimates on modded VF37 EJ257
- Vishnu Xede plug&play
- Engine Code?
- Weird Fluttering noise after APS turboback install...
- STi eatting coolant
- first catted sti to pull a p0244?
- diffaculty in installing headers
- Greened STi with oil feed line issue.
- 05 sti concerns
- Thumbs up to Cobb's TBE?
- Question for people with PE 850cc injectors...
- Official PERRIN BOV Thread
- CEL + Blinking Cruise Light= Boost Cut?
- Just curious - forged pistons
- sti oil filter Q?
- Minimum Octane Requirements For FXT
- Question for Boost Adjustability out of ECU Only...
- More HP questions...
- Crank Pulley Install question
- Help...oil leaking since EcuTek reflash...
- autometer boost guage?
- TurboXs fmic with aps bov???
- Question
- STi owners- mechanical 02 fix question...
- Gauge install questions on my 04 STI
- Help with BOV
- Question about Helix Downpipe w/cat
- are there upgrades for the radiator hoses and clamps?
- Goin Green Have Some Questions About Exhaust Options
- 05 STi GAS GUZZLER?
- Stalling problem on my STi
- Can the TurboXS DP and race pipe (cat delete) fit HKS?
- Best TBE & Intake combo?
- elementtuning.com
- Anyone know max hp on tuned VF39 with similar supported mods?
- Power after 6k rpm with aftermarket turbo?
- Hks Gt-rs Vs Hks Gt2540?
- Turbo XS catback ti vs Cobb SS catback
- What dp's mate up with espelir catbacks on the STI well?
- curious turbo noise...
- Turbo Guru's.. I need a big one.
- Deciding TBE
- Which wires?
- MY05 STI and $650 dealership credit = ?
- TBE Question?
- Fog light fitment with FMIC
- APS 3.5" RACE EXHAUST
- leaking coolant?
- buying headers.....worth wrapping?
- what do you guys know about..
- sti + auto trans
- Is oil pressure a good indicator of oil level?
- EGT sensor position
- Espelir catback JGT500? good?bad? what are your guys' favorite combo for the STi
- STi Video's
- Tricks for finding a boost leak?
- Intake Manifold Question
- The STi is a low emissions vehicle?