Best Engine Software | BMW Werkz

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G

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Discussion Starter · #1 · Apr 23, 2003

Got my hands on a 97 540IA,
now I want to purchase a software upgrade for my ride
and was wondering which tuner sells the best upgrade???

cam540

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Registered

Joined Nov 11, 2002

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2,692 Posts

#2 · Apr 23, 2003

autothority gives like 19 rwhp, dyno proven.

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