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powerband on 540i 6speed (archive)

[ Follow Ups ] [ 5-series (E39) Message Board ] [ Msg. Board FAQ ]

Posted by peter on August 12, 1999 at 20:01:54:

Wondering if the power loss from 4-5k rpm is normal, almost like brakes. Has anyone done mods to fix this, like chip or reprogramm, or cold air intakes. Help!!! want to know what works, have al the info from vendors but not sure it works. The supercharger from ERT looks interesting for 405hp, but then that 7900 also. Any ideas.



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