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UTECH piggyback ecu or REFLASH ECU

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Old 08-01-2007, 12:47 PM
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UTECH piggyback ecu or REFLASH ECU

I was wondering alot of the members here uses the utech piggyback or the reflash ecu which one is better and wat different does it do to the car so holla
Old 08-01-2007, 12:53 PM
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It allows you to modify fuel and timing based on boost or RPM.
Old 08-01-2007, 03:46 PM
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Depends on what you want to do... I really don't see much point to the UTEC for NA now that Osiris exists.

Do a search for 'UTEC' and for 'Osiris' and read up on a few threads - there's tons of info already posted.
Old 08-02-2007, 01:32 AM
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That is true, there are a number of other options if you stay N/A. But if you have plans to boost it get a UTEC or better (HKS, AEM).
Old 08-02-2007, 01:49 AM
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Even if you are not going FI u-tech is the way to go.

Old 08-02-2007, 12:25 PM
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Originally Posted by Nismo G
Even if you are not going FI u-tech is the way to go.

That is probably true at this moment, but after UpRev's Tuner Kit is released, it might be a different story.

The Tuner Kit will let Tuners tune an NA G the same way they would tune with a UTEC... plus a flash tune can raise the speed limiter... change the RPM limit... and reprogram the electronic throttle control. ...plus you don't have to buy a UTEC and cram it in under your dash.

Additionally, a flashed ECU will not learn/unlearn anything. It will always be learning to your desired tune.
Old 08-02-2007, 12:31 PM
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UTEC for FI. Reflash or Osiris for NA
Old 08-03-2007, 02:31 AM
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UTEC..... don't waste money on reflash like I did....
Old 08-03-2007, 04:26 AM
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Osiris for NA...

UTEC for FI...

That's how i'm going. Plus, I get the cipher with the Uprev Osiris

Old 08-04-2007, 01:52 PM
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From the researching I'm doing, I've found this: The Uprev Osiris is only tuned at WOT, and the UTEC only takes over at WOT.

My concern is that I'm not always at WOT when I drive. I would like something tunable like the UTEC, but I'm not boosted yet so something like the Greddy eManage would be a bit overkill. So right now, the Osiris and any fuel controller sounds like a better option. But would the Osiris keep my ECU from adapting to and overriding my APEXi fuel controller?

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2004, 2006, back, car, control, ecu, engine, g35, infiniti, osiris, piggy, piggyback, reflash, uprev, utech, wot
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