Possible to modify shift timings? ECU chip?
#16
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Though there isn't an exact figure, I'd definitely have the battery disconnected it more like 15-20 minutes. Then immediately after reconnecting, go out and drive it like you would it to perform on a daily basis. It picks up your driving habits and shift points within 10 minutes or so I've found.
#17
Lexus Champion
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Actually the tune along with the 50hp claim is for the IS350 and any other car that uses the 2GR-FSE. The IS250 as far as I know can only be tuned by TTFS at the moment with a gain of about 12whp and lb-ft. Which is better than nothing I suppose.
#18
Lead Lap
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![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Though there isn't an exact figure, I'd definitely have the battery disconnected it more like 15-20 minutes. Then immediately after reconnecting, go out and drive it like you would it to perform on a daily basis. It picks up your driving habits and shift points within 10 minutes or so I've found.
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