Good news for F30 335i owners looking to get more power out of your N55! Our new D-TRONICS performance tuners are now available for your car. Our initial units are for cars manufactured pre-6/2013 due to the use of a mechanical wastegate, but we're very close to having a solution (currently testing, est. out end of July) for the newest version using an electronic wastegate.
Our Stage One unit by itself gives your N55 364 HP, 375 lb-ft of torque. Please feel free to PM us with questions, but most of them are answered right HERE