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Old 07-11-2005, 05:54 PM   #26
eltrouble
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Quote:
Originally Posted by slvrwgn
Thanks for the responses guys, I really appreciate it. Based on what everyone has said I think my best bet is to install the up/down pipes and then take it in for a custom ECUTEK tune.

One more question, do you think it's safe to drive around with the up/down pipes installed for a week or two before getting tuned? I'd like to get a feel for how the up/down pipes change the car, and then also what difference the tune makes.
It's fine to drive it around with just the uppipe and downpipe for awhile.
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Old 08-31-2005, 11:00 AM   #27
Student Driver
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I can taste teh suck

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I wrote this in response to someone else's question on the Cobb AP, and hopefully Unabomber can incorporate some of it into his FAQ:

http://forums.nasioc.com/forums/show...0&postcount=16
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Old 04-18-2006, 11:30 PM   #28
fenix_black
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What gauges/tools are important if I wish to tune my own vehicle? These are considered the "must have" tuning items:

a. Wideband O2 sensor/gauge
b. EGT gauge

Are both of these needed for N/A applications as well?
(sry im a n00b )
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Old 07-21-2006, 01:48 PM   #29
AndrewSTi
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what is a good and cheap wideband O2 sensor that works with athe turbo xs utec?
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Old 07-21-2006, 02:28 PM   #30
TurbojonLS
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Quote:
Originally Posted by AndrewSTi
what is a good and cheap wideband O2 sensor that works with athe turbo xs utec?
A used Tuna.
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Old 07-31-2006, 01:23 PM   #31
bolderer
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Thanks Una for another great writeup. This one, like all the others, was extremely helpful and informative.
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Old 09-15-2006, 02:08 AM   #32
dubRexer
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Quote:
Originally Posted by AndrewSTi View Post
what is a good and cheap wideband O2 sensor that works with athe turbo xs utec?
you should never buy a "cheap" wideband O2 sensor.. those two things are not synonamus.. i use the aem uego, innovatives are great..
just my .02 cents..
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Old 11-14-2006, 04:16 PM   #33
The Hit
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Didn't hear anyone talk about the pitfalls of DIY ECU tuning. What are the dangers, if any, of an improper custom reflash? How much can you experiment without screwing up? Do they allow you to backup the original settings? Thanks for such a great sticky!
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Old 11-23-2006, 01:30 AM   #34
Staples
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great info - thanks
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Old 01-07-2007, 04:44 PM   #35
WRX Josh
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I plan to make my first mod a TBE for my 2005 STi. I'm still unsure of which brand I'd like to get, although I'm leaning towards the turboXS. Anyway, that's irrelevant. My question is, which form of EM would be best for me? I'm from southern california, namely OC, so there's a decent amount of tuners in my area. From what I read it seems as though a Custom Tuned ECU would be best for me. From my understanding a custom tuned ecu gives me the options of adding parts to the engine at my leisure and I can then take it to the local tuner to have them dyno tune my car for optimal performance. Is this correct? I don't plan to go all out on modifying my STi, but I will without a doubt have the urge to add bits and pieces here and there. Any help would be appreciated.
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Old 01-14-2007, 10:14 PM   #36
nashcarr
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some of the links dont work...
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Old 01-18-2007, 09:31 PM   #37
MSo
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Default Ecm

Not a single word about GEMS - (Standalone or Implant), one of the best EM, that proved their quality and performance by any Auto Sport activity
Strange????????,
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Old 01-22-2007, 09:10 PM   #38
Audious
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Will you see any significant power increases if you install EM on a stock WRX?
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Old 01-26-2007, 08:28 PM   #39
Call_me_Tom
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Quote:
Originally Posted by Audious View Post
Will you see any significant power increases if you install EM on a stock WRX?
yes, search for stage 1
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Old 02-22-2007, 01:01 PM   #40
brooklyngenius
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is it worth it to have a bone stock WRX's ecu reflashed? would there be any gains?
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Old 02-28-2007, 08:38 PM   #41
Airborne Guy
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Quote:
Originally Posted by brooklyngenius View Post
is it worth it to have a bone stock WRX's ecu reflashed? would there be any gains?
yes, and yes
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Old 03-09-2007, 10:49 AM   #42
the slug
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Great info! Thank you!

I have an '03 Baja N/A MT. I plan on doing very little mods to the engine. Down the road I may try for more torque, but nothing in the near future.

Has anyone had any experience with the Code Readers/simple EM systems? How about any that work through a PDA?

My goal is to read and clear CEL codes, verify emissions before paying to have them tested each year and maybe simple power gains without braking the bank.
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Old 03-29-2007, 04:56 PM   #43
pc4400
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Regarding reflashing the ECU...
Does the dealer ever update the ECU prog and thereby loose my data?
Don't plan on going to the dealer but just want to know.
Thanks
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Old 04-02-2007, 02:51 PM   #44
nickolas388
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very helpful faq thanks
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Old 04-02-2007, 09:46 PM   #45
Call_me_Tom
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Quote:
Originally Posted by pc4400 View Post
Does the dealer ever update the ECU
Yes they do.
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Old 06-09-2007, 05:42 PM   #46
jpeagle
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Default Great Thread

Great Thread. Thanks!
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Old 06-19-2007, 08:18 PM   #47
DCsubieSTI
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so if i get the cobb AP i'm gonna also need a booste gauge?
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Old 08-06-2007, 11:22 PM   #48
Murdoc2112
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Quote:
Originally Posted by irshkid72 View Post
so if i get the cobb AP i'm gonna also need a booste gauge?

You have a turbo charged car. You NEED a boost gauge.

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Old 08-08-2007, 03:12 PM   #49
Windflower
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08 Outback 2.5iLtd/VDC

Default Newbie Question

Forgive this basic question!

This is my first Suby and have used the CarChip OBDII tool to monitor engine functions on other vehicles. The port location is usually under the steering wheel - but I cannot locate the port on my 2007 impreza 2.5i.

Again forgive me, but where does Subaru locate their ECM access port?
Thx, J
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Old 10-25-2007, 09:02 PM   #50
devil_red
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which is more compatible to ej22 na??
Emanage ultimate or Unichip??
been contemplating between these 2 piggy backs to fix on my car...any feedbacks from anyone here of the 2 ecus?
thanks
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