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  1. E39 M5 and E52 Z8 Discussion
    Hi, Have my beast from 3 months now, always felt asthmatic, changed the 2 MAFs as they were shot (still stock ones at 70k miles). changed for OEM Bosch. also already changed plugs, fuel filter, new fuel pump, new chain tensioner,...(+ all oil/filters changed) As I didn't reset MAF values...
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