I can boost how much on stock STI?

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03-03-2007 | 10:12 PM

#16

pwn

Registered User

iTrader: (10)

Joined: Mar 2006

Posts: 2,498

From: Dublin, California

Car Info: 09 STi, 10 Cayman S

Quote:

Originally Posted by impreza-tux-121

so are you saying that if you have a aftermarket DOWNPIPE then it wont work well without an COBB AP 2 or Engien Management??

Yes.

--edit--

And an AP is engine management.

04-16-2007 | 03:51 AM

#17

EuroScuby

Registered User

Joined: Apr 2007

Posts: 45

From: Germany

Car Info: 2004 Subaru STI

I have an '04 STI and ran 18.5lbs of boost thru a UTEC on stock turbo for over a year w/ no issues. As far as the BOV, everyone is right. I installed my RFL before I pulled my STI off the lot and imediately started backfiring. With a BOV venting to the atmosphere, the air is not recirculated as the ECU thinks and the ECU calculates fuel according to the air that has been sucked thru the intake. Therefore, if you run an aftermarket BOV, you'll run super rich after venting. But it sounds cool and the backfiring scares the hell out of people.

09-10-2007 | 09:14 AM

#18

adobeamd

Registered User

iTrader: (1)

Joined: Aug 2007

Posts: 153

From: Danville, Cali

Car Info: 2003 WRX

i want fireballs

im upgrading my wrx and getting sti turbo and tmic titek up and dp with blitz nur spec r catback o yeah don't forget about the sti pinks should i get a new fuel pump or would the 03 wrx one beable to handle it? i dunno about a bov it sounds cool but i dunno what about a 50/50 bov?