Just go with the regular e90 offset and you should be fine. The M3 offset doesn't do anything for handling. I take it you are going for look.
09 335i Coupe LBM - Black Dakota/Glacier aluminum-6spd|Nav|M-Sport|Premium|Logic7|Heated Seats|CA|BMW Performance Suspension & M3 Control Arms|M3 lip spoiler|Avant Garde M510 Wheels
07 335 coupe - Sold