Seller notes

Update ECU from Motronic 4.3 original to Motronic 4.4. Smoother operation, better performance, full OBDII compliance with code reading and realtime data This will work both with and without SAS and rear O2. The perfect upgrade for your beloved 850. YES! This is the one that really works. No issues. Thanks for watching! Custom charges may apply outside EU - country specific....

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