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Old 07-20-2003, 04:54 PM   #1
Scooby Specialist
Member#: 22998
Join Date: Aug 2002
2004 WRX STi
GT35R 572 whp 93/meth

Default anyone running a EBC or downpipe yet?

Just wondered if anyone has added a boost controller or a downpipe yet. Also what impressions did you guys get? How much faster do you think you are? I hear the downpipe doesnt add much power but it does make max boost come on stronger.

Wondering which mod I want to do first.

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Old 07-20-2003, 07:53 PM   #2
Wombat North
Scooby Specialist
Member#: 21267
Join Date: Jul 2002
Location: Eats, roots and then leaves
STI, EWG 8cm Green
UTEC/ECUtek/WI & SD tune


I have both
Turboxs Downpipe etc with prodrive muffler

EBC the car comes on boost alot quicker

Exhaust has the engine come alive above 5k

Cars faster than my old stage 4 when you get into 4th, 5th and 6th.

PM me your email and I'll show you what's wrong with the front intake near the radiator. I have pics.

Almost forgot, do the exhaust first
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Old 07-21-2003, 03:50 AM   #3
Scooby Specialist
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
2004 STi: 580 AWHP
Java Black Pearl


I have Downpipe along with the rest of the turbo-back exhaust. Definitely rip that cork of a muffler off too!

I also have a Manual Boost Controller. The STi can make effective use of these where the WRX needed help with partial throttle/max boost.

Works well to get boost up quickly and higher than stock if desired.

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Old 07-21-2003, 05:24 AM   #4
Scooby Specialist
Member#: 27143
Join Date: Oct 2002
Location: Anchorage, AK/Burbank, CA

i have my TXS turbo back from my wagon that im gonna put on mine when i finish breaking it in...what kind of EBC's are you guys using?

bert_WRX is offline  
Old 07-21-2003, 07:44 AM   #5
Scooby Specialist
Member#: 10921
Join Date: Oct 2001
Location: S.W. Florida
04 04 STi
12.8 @ 105 mph


What max boost level are your guys running.? I've heard that the STi really makes over 15psi boost from the factory. How much boost did your STi make from the factory?
I don't have a boost guage yet. As soon as I get one ,I'm going to hook up my High Performance boost controller from Turboxs.
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