Bought one for my wife with the new 3.5 twin turbo motor(same in the 335) I must say I am very impressed with the motor. Tons of power and makes good power all the way through. I am thinking of putting the Dinan chip in it.

 

Dont go Dinan, they're too conservative with their maps due to warranty issues. I would go with a piggy back chip like a Juice Box 2 that can be removed when taken in for service.

 

Thanks!