Dinan Stage 3 Performance Engine Software for BMW E82 135is (N55)


Dinan Performance Software is so much more than just tuning up the turbo boost. It is a fully re-tuned engine management program that maximizes power while keeping all the BMW factory safeguards in place. Protecting your BMW while giving the most performance.  

Benefits of the Stage 3 Dinan Performance Software Upgrade:

  • Max gain of 18 HP and 7 lb-ft of torque over stage 2 when used in conjunction with the Dinan exhaust, oil cooler, and intercooler. 
  • Better Drivability than "Piggyback" boxes
  • Hassle Free Operation
  • Huge Torque Gains Drastically Improves Acceleration
  • No Shipping!  Available at ALL +130 Dinan Dealers Around the World
  • No Hesitation Between Shifts
  • Downloads through the BMW diagnostic port, the same way BMW loads software
  • Top Speed Governor Removed on manual RWD vehicles, you decided how fast you want to go. *The stock top speed governor is retained for automatic and/or xDrive vehicles.
  • Factory Matching Warranty Coverage (4year/50,000 mi), no sleepless nights or being scared to go to the BMW dealer
  • Full Map Rescaling, for drivability from idle to wide open throttle and everywhere in between
  • Properly Returned Fuel Mixtures, to save you gas and protect your engine
  • Water Pump Speed Increased, to improve cooling
  • Retain All BMW Factory Engine Damage Safeguards


  • 2013 BMW 135is E82 Coupe 
  • 2011-2013 BMW 135i Convertible
  • 2011-2013 BMW 135i Coupe
  • 2011-2013 BMW 135is Coupe
  • 2011-2013 BMW 335i Convertible
  • 2011-2013 BMW 335i Coupe
  • 2011 BMW 335i Sedan
  • 2011-2013 BMW 335xi Coupe
  • 2011 BMW 335xi Sedan
Product Specifications:
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal.
California Air Resources Board Executive Order Number D-176-39.
Max HP Gain 52
Max Torque Gain 70 @ 3900
Peak Horsepower 373 @ 5300
Peak Torque 408 @ 3500
Peak HP Gain 51 @ 5500
Peak Torque Gain 70 @ 3500
Factory Rated HP 320 @ 5800
Factory Rated Torque 317 @ 1300
Required Items Free Flow Exhaust, High Capacity Oil Cooler and High Performance Intercooler are required.