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Old 04-16-2012, 04:17 PM
plegard plegard is offline
Officially Welcomed to the 'Fest
Location: Middle America
Join Date: Mar 2002
Posts: 189
Mein Auto: '15 35i M-Sport Blk/Blk
Anyone heard about ZMX impact on fuel economy

Anyone heard of the M-Performance Package's impact (if any) on the fuel economy numbers of the 35i or the 50i?

Hoping that this "tune" will be at worst neutral to MPG figures. Am going with the 50i and that is already a fairly thirsty car.

Anyone have experience with other "tunes" of this magnitude (~10% boost) and their impact on MPG?

Sounds like this "tuned" version of the N63 is going to be the BASE engine for the new 650 Gran Coupe so that makes me think BMW is pretty confident in the "tuning" inherent within the M-Performance package.

thanks in advance.
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