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BMW 440i with MPPSK + DME Tune??
Hey guys, I recently got the MPPSK kit installed on my BMW 440i Gran Coupe and I know the installation comes alongside a factory "tune". I was just wondering if I were to do the DME Tune, would the tune override/cancel each other out? Also some technician told me that if I were to tune and then de tune later on, it might de tune the factory "tune" as well. Don't know much about tuning so I would appreciate any feedback. Thanks
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