Needing a tune up on a stock 2009 bmw 335i. looking for at least a good stage 1 if not more. Please help and thank you.
N54 engine
3.0 straight six of course
xdrive twin turbo
automatic trans
E88 fuel used

first post. :wave:

1. Introduce yourself.
2. Only sponsors allowed to sell you files = see rules.
3. Where is you file?

I am a mechanic in the U.S. ARMY. recently started tuning as a side job and found a interest in vehicle tuning.