Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

turbo upgrade questions/selections

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Old Nov 8, 2007 | 04:03 PM
  #1  
TenaciousEJ25's Avatar
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Joined: Oct 2006
Posts: 4
From: Frisco TEXAS
Car Info: STi 4 ME
turbo upgrade questions/selections

if i wanted to upgrade my turbo with with something that will give me some more more power thats still safe, i dont want something so big that i have to start engine rebuild.

2005 STi

the more help the better

TIA
Old Nov 9, 2007 | 02:05 PM
  #2  
WRXSTI's Avatar
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Joined: May 2003
Posts: 271
From: Folsom
Car Info: 04 Silver STI
Ihi Vf22
Old Nov 9, 2007 | 02:20 PM
  #3  
NorCalBugEye's Avatar
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From: top of Mt. Hammy
Car Info: 413whp/461wtq
a lot of people have been getting great numbers from 20g's and FP green's. of course you will need supporting mods (injectors, fuel pump, TBE, ect..) but with a tune you can run it safely and still hit 300WHP+ pretty easily.

but if you're looking to stay with stock parts, IHI VF22 or the VF34 are good alternatives. but IMO, the VF34 are way overpriced!
Old Nov 9, 2007 | 10:06 PM
  #4  
03_Impreza_Al's Avatar
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From: "Streets Closed, Pizza Boy"
Car Info: www.pinoymamba.tumblr.com
Just get your car tuned. STis are putting some crazy numbers with the stock turbo.
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