2011 and up 135i, both coupe/E82 or vert/E88, all have N55.
AFAIK, all BMW 2011 vehicles switched to N55 starting in 2011, as year 2010 was last year for the N54 (except for 1M and 335is). Link:
http://www.1addicts.com/forums/showthread.php?t=581955
Reason I ask is that you specifically do Not list the 2011+ 135i vert/E88 on any compatible vehicle lists.
However, you do list the 2011+ N55 335i E90/91/92/93.
Please see these links:
http://www.1addicts.com/forums/showthread.php?t=759086
And especially this link for the 2011+ N55:
http://www.burgertuning.com/N55_Stage2_Jb4.html
And this one:
http://www.n54tuning.com/index.php?_...d&productId=67
Perhaps it's just an oversight and you will revise your web page?
Thanks in advance!
