STi Engine Performance | Subaru WRX Forum

Sticky Post 2.5L STi Engine threads here!

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2018 STi stage 2 misfire, Help!

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753

Subieeeenationnn!

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332

Turbo Back Exhaust and Tune

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642

by JLP301

2002 Wrx what happens

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1K

by zax

Clean 2006 suabru sti for sale

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N/A

Cobb Tuning has stopped supporting Stage 2 tunes - ISO 05 STi Stage 2 and 2+ OTS Maps

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by XJman

Looking to make 500whp any turbo suggestions

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408

by jordancaird2

Subaru wrx sti limited 2020

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536

Weird Idle

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by zax

Dual avcs in a 2002

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by zax

Knock on start up.

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by Rome89

Plz help

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by jordancaird2

2021 subaru wrx STI

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by zax

2006 STI build questions

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by 06guy

Headlights both went out and lights came on

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833

Swap avcs problem on 04sti usdm harness on ej207

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557

2006 Sti tick only at 1200 rpm.

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633

Intercooler Fitment

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HELP OVERBOOST STI

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by XJman

Intake runner P2006

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STI Stock whp?

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90K

STI TMIC on 02 WRX

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by XJman

Need help with P0300 and P0000 codes

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2K

by XJman

Cobb stage 2 boost

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535

by XJman

Ej257 knock

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1K

by zax

Burning through a Quart of oil every 50 miles. No blue smoke, no leaks on the floor. What??

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971

Late boosting

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533

by Jeff90

DAM .500

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STI 15+ HKS BOV with stage 1 Cobb sf intake

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Rev9 dp

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723

Recommendation for motor repair in Denver

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866

by Pico de Gallo

Exhaust sound

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3K

Grimmspeed

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by XJman

Pro tune

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by XJman

NEED HELP!!!

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