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      12-03-2018, 04:20 AM   #2
akkando
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Drives: 17 M2 DCT LBB,11 e90 M3 ZCP IB
Join Date: Jan 2017
Location: Bay Area

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This guy has some videos on it.


He has some posts here as well.

There are some other options for flash tuning.

Sounds generally like Stage 1 doesn't add a lot of peak HP (especially on 91 oct), but the butt dyno feels the power.

Stage 2 is going to require intercooler upgrade, sport cat, and think about a charge pipe.


Check the N55 engine section. https://f87.bimmerpost.com/forums/fo...play.php?f=651

Last edited by akkando; 12-03-2018 at 04:26 AM..