Originally Posted by minijet
My thoughts coming from a modified 135i N54.
Not planning any engine mods for my 328i but...
If i was to mod, i would wait until someone like cobb came out with a flash tune. I had both procede and JB previous and none of them compared to the smoothness (and for me power) of the Cobb.
Cobb is also much easier to install and uninstall as it was all via the ODB port.
My thoughts are if you really want piggybacks, then to wait a little as the N20 is still relatively new hence the product development is not as far advanced. I would rather others test it out for a while until i can get enough documented proof of its performance and safety.
just my 2 cents.
I'm waiting for a flash tune as well - Over the piggybacks.. (still have one sitting at home [Active Autowerkes] from when I went to Procede in the 135)
The minute there is a flash available - car would be dropped off at Southern BM for install.
2008 135i - Jet Black, Coral, full options Procede v4
2009 123d - Space Grey, MSport 18" (decided to keep it)
2010 C63 AMG - White, custom tune, custom exhaust 319rwkw
delivered: 2012 328i - Estoril Blue MSport 19", BBK + options