Scott M. 
2008 BMW 3 Series Coupe 335i 2dr Coupe (3.0L 6cyl Turbo 6M)
Great car, amazing with chip!
 Edmunds alludes, in its full test, to the potential for aftermarket chips to greatly improve the performance of this car.  I can attest to this, having installed Dinan performance software about a week after delivery of the car.  My car pulls extremely strong, especially north of 3000 rpm.  Plus, Dinan matches BMW's 4/50 powertrain warranty.  I love this car.