Bolt-on Tech (EJ225/257 2.5L 04-07 STi 06-07 WRX) | Subaru WRX Forum

Sticky BOV and CAI discussions - read before you ask about one

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Finally Stage dos next week

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118

by Challa

Lost in Dire Need

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226

by SoobieNoobie

do i need subaru coolant?

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22

169K

by rajputaman04

How much HP can a 04 STi handle

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by Dannym2827373

Boost at WOT in Fifth gear?

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25

6K

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by sunilbhaiya72

Buying a newer wrx sti 2016 to 2019

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by JacobCollier

BOV and intercooler

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1K

Different Year Exhaust

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698

by 626_rx

07 turbo replacment

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by basco

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973

by basco

What next to do to 07 wrx

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2K

Any ideas for my exhaust sound?

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by arcticscythe

is my 2007 wrx compatible with a VF52?

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2K

by Ruso

Loss of power after "overboost"? 07 WRX

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2K

VF39 only tuned at wastegate pressure.. no restrictor pill. What should I do??

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3K

Need help with 06 wrx turbo

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3K

by Ruso

T4 flanged Up Pipe

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2K

05 sti 450 engine hp

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2K

by titter

Possible Engine Swap

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by titter

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by titter

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by arcticscythe

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5K

by titter

Custom exhaust build #1

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by titter

06 sti diffuser install

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2K

by titter

Check engine light p0457

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2K

Looking at this car to buy, thoughts on it?

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2K

by titter

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by clamer

seafoam a Subaru wrx

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14K

Boost/vacuum leak??

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3K

Low idling problem

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5K

Best adjustable coilovers??

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24K

2007 Wrx wagon downpipe

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by titter

Front mount intercooler

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CSF Radiator/Oil Cooler Combo (08-14 WRX, 08+ STi)

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5K