Welcome to the North American Subaru Impreza Owners Club Saturday October 20, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC General > Newbies & FAQs

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 01-17-2012, 07:50 PM   #1
Scooby Newbie
Member#: 146590
Join Date: Apr 2007
Location: Calgary, Ab, Canada
2004 WRX STi
Aspen White

Default 04' STi fuel injectors

Hey guys,

I've been trying to search up replacement fuel injector/s for my 04' STi. My problem is that i have a faulty fuel injector that is pulling too much fuel and there the ECU is cutting fuel and causing my engine to misfire.

My car is currently running a stage 2 tune, which entails an invidia 3" catless dp mated to a turbo xs ws-rma exhaust and an injen cai.

Now, i've found out that the factory injectors are a 535cc side feed injector.
So my question is: what options do i have for factory like injectors? Do i replace all 4? Is it worth it to buy used 2004 injectors? Should i upgrade?

I'm not looking for more performance, but i'd think that any aftermarket injector has a higher flow rate and therefore upgrading injectors comes into effect?. I'll probably take out buying new factory injectors as an option due to the cost?

Any help would be greatly appreciated. thanks

* Registered users of the site do not see these ads.
cbr_boi is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-17-2012, 07:55 PM   #2
AJW Performance
Former Vendor
Member#: 219896
Join Date: Aug 2009
Chapter/Region: NESIC
Location: Gilford, NH

There are a number of choices. Check your PM's
AJW Performance is offline   Reply With Quote
Old 01-17-2012, 08:19 PM   #3
[email protected]
Former Vendor
Member#: 301037
Join Date: Nov 2011
Chapter/Region: MWSOC
Location: Minneapolis, MN
2004 Forester XT
Aspen White


As stated above there are a number of different options. Deatschwerks has a great line of injectors that fit just like OEM
art@grimmspeed is offline   Reply With Quote
Old 03-14-2013, 10:23 PM   #4
Scooby Newbie
Member#: 341291
Join Date: Dec 2012
Chapter/Region: BAIC
Location: Petaluma, Ca
2004 Impreza WRX STI
Aspen White


Mind as well upgrade man, I just had my 04 Sti tuned and the injectors crapped out at 333awhp and 330tq 😔
brodi11 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
For sale 2007 sti fuel injectors, fuel rail and TGV housings syoung0298 Engine/Power/Exhaust 8 02-22-2009 05:31 PM
FS: STI Fuel Injectors (Pink's)/Walboro 255 Fuel pump digitaljigga NWIC Private Classifieds 0 09-28-2007 10:57 PM
VF39, STi TMIC, STi fuel Injectors, and STi upipe Irishman Engine/Power/Exhaust 15 09-10-2006 04:37 PM
STi Fuel Injectors (pinks) Sti Fuel Rails Rick Dizzle Private 'For Sale' Classifieds 15 10-18-2005 09:00 PM
Sti fuel injectors wanted wrxtreme6966 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 1 10-23-2002 01:08 PM

All times are GMT -4. The time now is 01:59 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.