OTT Tune for 2022 GX460

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As long as it's not disabling any codes from the safety or smog system sensors (cat efficiency, O2 sensor, etc.) you should be fine in MA. I "know people" who ran cars with basic tunes for a while without any issues.


I have a separate question - does Lexus have a way of determining if the ECU has been flashed for the purposes of rejecting warranty claims?
 
As long as it's not disabling any codes from the safety or smog system sensors (cat efficiency, O2 sensor, etc.) you should be fine in MA. I "know people" who ran cars with basic tunes for a while without any issues.


I have a separate question - does Lexus have a way of determining if the ECU has been flashed for the purposes of rejecting warranty claims?
Bump.

Great question – I’ve been curious if Lexus has a way to determine if the ECU has been flashed as well, but it have been unable to get an answer from anyone
 
It's not like a turbo vehicle that gets its ECU flash to push performance on an over stressed engine. If you are out of warranty, I would not worry about it. If you are in warranty, I do not think it is a big deal. Flashing this NA V8 is not likely to stress this engine anywhere near the point of failure.
 
If you're worried about the flash, I'd pay for a VF Tuner license and OBD2 dongle so you can load/unload the tune and replace with stock if you ever need to take the vehicle in for warranty service. You just need a Windows laptop to do that.
 
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