Each dealer ECU update has a different ECU part # in the firmware to differentiate them.
To put your tune back on you after ECU update, will need to get an updated OsirisROM from uprev corresponding to the new ECU part#, and have the tune data copied from the old file to the new one in ROM Editor.
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PPE Headers SS/Coated/Wrapped | Ebay y-pipe | Custom 3" single exhaust w/ Magnaflows | UpRev | Racingbrake 2pc Rotors | 40th calipers | Eibach sways | SPL endlinks, diff mounts | RJM pedal | Stillen Intakes, UDP, Flywheel | M370 Manifold | Z1 engine mounts, CSC-EK, Clutch | Forgestar F14 18x10 | Conti DWs | Quaife diff/4.08 gears | Nismo diff cover
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