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      03-16-2023, 02:56 PM   #3
B21
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Drives: E89 Atacama Yellow 35is
Join Date: May 2022
Location: Scotland..God’s own country

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XHP is a good product for the auto box..makes it feel much more like the later ZF8HP boxes..

ECU wise Celtic offers a modest tune that adds a little ‘pep’ but not much in BHP

The 23i doesn’t really have anywhere to go tuning wise..

Yiu can adjust throttle lag to give the illusion of more go..
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Much modified 2011 Atacama Yellow 35is…previously a much modified 2012 Atacama Yellow 20i MSport
Change history here… https://www.dropbox.com/s/8h1vabklgz...0List.pdf?dl=0
Build thread here… https://z4-forum.com/forum/viewtopic.php?t=131886
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