Looks like C&D has bust the gates wide open on the tuning aspects of our beloved 335i:
http://www.caranddriver.com/features...-bmw-335i.html
"Which raises the point: If half a pound of extra boost can strip a few tenths, what might a couple pounds do? Although we know you’d never, ever compromise your warranty with an impossible-to-trace piggyback performance ECU, we understand the temptation to whup on M3s and return home to sleep on a bed of 20,000 stacked $1 bills."
