Thread: Did JB4 tune
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      01-21-2013, 11:46 PM   #20
melloww22's Avatar
Drives: 2011 335i E90
Join Date: Apr 2011
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The n54 is a great engine however if the n55 ever reached the engineering support similar to its predecessor then their will be a huge turning point... Thus why the single turbo conversion upgrade to the n54 platform... Stability and power
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