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      02-13-2021, 04:35 PM   #7
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Drives: 2009 Havana E89 Z4 Sdrive35i
Join Date: Apr 2016
Location: Estonia

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Originally Posted by sduncan219 View Post
Hello I have a 2011 N54 35is and will be doing very similar mods as replapla. I am wondering if there will be a performance difference starting with the 35is vs 35i ?? Is there mods I must do in addition to his or ones I can delete, and what the overall outcome will be?
Everything should be the same and you would make similar power as 35i or any other n54. Turbos are the same, stock intercooler is the same, stock downpipes are the same. Stock exhaust midpipes are the same aswell. Only back section of the exhaust with mufflers is different partnumber on the 35IS. according to parts catalogue IS has one motor mount that is different and probably stiffer than 35i. All the cooling is the same. Its all mostly the same. Just tuned differently from factory.
2009 35i DCT Havana brown with ivory white interior. Mods: Cobb stage 1, BMS DCI, KW V3 suspension, Michelin Pilot Super Sport tires.
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