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      03-25-2013, 10:06 PM   #393
Enlisted Member

Drives: 335i xDrive
Join Date: Jun 2012
Location: Brooklyn NY / NH

iTrader: (0)

Hello. First off, good looks to Cobb, used to run stage 2 on my 04 STi and loved it.
Ok, my questions. About to pull the trigger on the AP and just want to know (based on conflicting posts I've read)

1) Is there a performance decrease or problem with using BMS intake? If not, I'll keep it on, if so, I'll go back to stock airbox?
2) Just want to clarify that a CBE (interested in the Vanguard) will not hurt or help performance - it's basically for look/sound.
3) Regarding ROM - I have a 2011 335i xdrive, is there any way to tell (call the dealer?) what ROM I have and if it's going to work? Do the AP units ship w/all the latest ROMs?
4) If I remove the tune and revert back to stock map, can dealership tell it was ever mod'd?

That's about it ... thanks!