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Unichip GS400

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Old 04-16-12, 07:38 PM
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3vzfemr2
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Default Unichip GS400

Has anyone had experience with Gs400 unichip on 98+ sc400? Will the Gs400 work? They do not appear to sell sc400 model specific anymore
Old 04-16-12, 10:54 PM
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xxtoobsxx
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I know a guy selling a 400 unichip
Old 04-18-12, 08:18 AM
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is it for 98 + SC400? If not can it be reflashed?Any idea why he is getting rid of?
Old 03-05-13, 10:19 AM
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Bumping an old thread..
Anyone know anything about these Unichips? They got good reviews on PlanetSoarer, but in my research someone mentioned they're out of business? Their websites are still up and running though..

There's one for sale in the classifieds and I'm looking for some information before I pick it up.

My car currently has PPE headers, Y pipe, Tanabe exhaust, BFI, TT LSD. I definitely need a tune now, just dont know much about tuning the AFR in cars as it is new to me.
Old 03-05-13, 10:29 AM
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MDSC
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Just get super AFC and get it dyno tuned, you dont need anything more for bolt ons.
Old 03-05-13, 11:08 AM
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scENFORCER
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Originally Posted by MDSC
Just get super AFC and get it dyno tuned, you dont need anything more for bolt ons.
What exactly is the difference between the UniChip and the Apexi?
Old 02-14-15, 02:12 AM
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angus
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Any update on this? Anyone using a piggyback that can adjust timing and AFR?
Old 02-14-15, 09:48 AM
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..I've learned a bit more about tuning since this thread. From what I understand piggybacks dont really work on OBD2 cars because the cars computer will keep overriding any changes made by the piggyback over time.
From the sounds of it anything OBD2 will have to go standalone. Am I correct on this?
Old 02-14-15, 11:33 AM
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angus
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Originally Posted by scENFORCER
..I've learned a bit more about tuning since this thread. From what I understand piggybacks dont really work on OBD2 cars because the cars computer will keep overriding any changes made by the piggyback over time.
From the sounds of it anything OBD2 will have to go standalone. Am I correct on this?
The problem you mention does exist to a point, it is not something that cannot be corrected for.

For instance the AEM FIC is specifically designed for OBDII.

There are plenty of people who have shown gains from using the SAFC on the GS/SC400/430/300
Old 02-15-15, 08:49 AM
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Originally Posted by scENFORCER
..I've learned a bit more about tuning since this thread. From what I understand piggybacks dont really work on OBD2 cars because the cars computer will keep overriding any changes made by the piggyback over time.
From the sounds of it anything OBD2 will have to go standalone. Am I correct on this?
I think that's true on all SCs, not just OBD2?

I was close to buying a SAFC but was told about the [re-]learning ECU problem. After doing more reading, I determined it's 50/50 whether it has worked for other people. Those aren't great odds!
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