2004 2.5RS ecu work?

Dammod · 04-17-2009, 10:11 AM

Hey guys, I have a 2004 2.5rs with a 2.5" free flow zorst, custom headers, lightweight pulley and a DIY CAI. I have a unichip sitting in my closet that im thinking of installing in my car. Is it worth it as I hear you are not able to tune the 2004 2.5rs ecu's??? How much power can I expect to gain?

Thanks alot,
Dammod

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aclver1 · 04-17-2009, 02:54 PM

I know nothing about the unichip but I have similar mods on my 04 with a PP6 for my EM. I did notice a little different going from my stock map to a stage 2 map but mostly it just felt better and the smoother. i would bet only a few but it will drive better.

Dammod · 04-19-2009, 04:30 PM

Hey man thanks for your reply. How many kw or hp did you gain? Im having some trouble with Honda V-tecs at the moment that im hoping this might sort out

Dammod · 04-21-2009, 01:16 PM

Bump***********

smithrcing17 · 04-21-2009, 02:05 PM

idk about unichip, just get an ispeed reflash..

Dammod · 04-21-2009, 07:12 PM

Quote:

Originally Posted by smithrcing17

idk about unichip, just get an ispeed reflash..

Thanks for the reply

How do they get that right considering my car is a 04 model?

I dont live in the states though anyway so wouldnt be able to go that route

Back Road Runner · 04-21-2009, 09:49 PM

I-Speed.

Yeah, the ECUs can be tuned, OpenECU. It's just knowing how to do it.

Dammod · 04-22-2009, 04:19 AM

Quote:

Originally Posted by Back Road Runner

I-Speed.

Yeah, the ECUs can be tuned, OpenECU. It's just knowing how to do it.

I have someone who can tune but he said (along with most posts I have seen on the net) that the 2004 impreza DBC cars cant be tuned as of yet?

aclver1 · 04-22-2009, 05:48 PM

The 04 ecu can't be tuned by open source it's the only year it doesn't work. That is why I have the PP6, a tactric cable would have been a lot easier and cheaper.

smithrcing17 · 04-22-2009, 06:05 PM

Quote:

Originally Posted by Dammod

Thanks for the reply

How do they get that right considering my car is a 04 model?

I dont live in the states though anyway so wouldnt be able to go that route

well you tell them what you have done to your car and they ill tune it by maps they already have made up for similar mods to their shop car they used. but idk alot about ecu's so im not sure if different countries have diff ecu's but i would think you could just ship it to them and it wouldnt be any diff then living in the states.. id email them if i were you and ask. from what i hear they are a very good company! hope that helps you out!

RaceFaceXC · 04-22-2009, 06:49 PM

Quote:

Originally Posted by aclver1

The 04 ecu can't be tuned by open source it's the only year it doesn't work. That is why I have the PP6, a tactric cable would have been a lot easier and cheaper.

04 isnt the only year that cant be opensource tuned, it's the last year that can't be opensource tuned. the 05 2.5RS and 06/07 2.5i can all be opensource tuned currently. the 08+'s are hit and miss last I heard, but only because they havn't had the chance to decode all the ECU versions used. So if you have an 08+ and a tactrix cable, pull your rom and send it to the RR guys so they can get it supported. unfortunately I dont think this is an option for pre 05 N/A vehicles.

Dammod · 04-23-2009, 06:44 AM

Thanks alot for everyones replies. Much appreciated ;-)

Quote:

Originally Posted by aclver1

The 04 ecu can't be tuned by open source it's the only year it doesn't work. That is why I have the PP6, a tactric cable would have been a lot easier and cheaper.

Hey man thanks for your reply. How many kw or hp did you gain?

04-17-2009, 10:11 AM	#1
Dammod Scooby Newbie Member#: 208881 Join Date: Apr 2009	2004 2.5RS ecu work? Hey guys, I have a 2004 2.5rs with a 2.5" free flow zorst, custom headers, lightweight pulley and a DIY CAI. I have a unichip sitting in my closet that im thinking of installing in my car. Is it worth it as I hear you are not able to tune the 2004 2.5rs ecu's??? How much power can I expect to gain? Thanks alot, Dammod * Registered users of the site do not see these ads.

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04-17-2009, 02:54 PM	#2
aclver1 Scooby Specialist Member#: 114177 Join Date: May 2006 Chapter/Region: RMIC Location: SLC utah Vehicle: 2004 Impreza 2.5rs 70 Datsun Fairlady	I know nothing about the unichip but I have similar mods on my 04 with a PP6 for my EM. I did notice a little different going from my stock map to a stage 2 map but mostly it just felt better and the smoother. i would bet only a few but it will drive better.

04-19-2009, 04:30 PM	#3
Dammod Scooby Newbie Member#: 208881 Join Date: Apr 2009	Hey man thanks for your reply. How many kw or hp did you gain? Im having some trouble with Honda V-tecs at the moment that im hoping this might sort out

04-21-2009, 01:16 PM	#4
Dammod Scooby Newbie Member#: 208881 Join Date: Apr 2009	Bump***********

04-21-2009, 02:05 PM	#5
smithrcing17 Scooby Newbie Member#: 193195 Join Date: Nov 2008 Chapter/Region: Tri-State Location: Harrisburg Vehicle: 2005 Ty Tuned 2.5RS PSM	idk about unichip, just get an ispeed reflash..

04-21-2009, 09:49 PM	#7
Back Road Runner Scooby Guru Member#: 60082 Join Date: Apr 2004 Chapter/Region: MWSOC Location: Minnesota Vehicle: 2004 Forester STI Silver	I-Speed. Yeah, the ECUs can be tuned, OpenECU. It's just knowing how to do it.

04-22-2009, 05:48 PM	#9
aclver1 Scooby Specialist Member#: 114177 Join Date: May 2006 Chapter/Region: RMIC Location: SLC utah Vehicle: 2004 Impreza 2.5rs 70 Datsun Fairlady	The 04 ecu can't be tuned by open source it's the only year it doesn't work. That is why I have the PP6, a tactric cable would have been a lot easier and cheaper.