DInan Stage 2 Performance Engine Software Kit for BMW E82 E88 135i E82 135is E90 E92 E93 335i (DIY)

Dinan D900-31T-KIT

All orders will include an AutoTalent window decal


The Dinan Team made a fast software upgrade, using our years of experience tuning BMWs for the street as well as winning back-to-back Grand-AM DP Championships and the 2011 24 Hours of Daytona.

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. 

Drivetrain and engine components are analyzed for strength then the program is tested on the dyno and in the real world for durability and drivability. Dinan matches the new car warranty coverage for up to 4 years or 50,000 miles, including the possibility of consequential damages. The top speed governor is removed on RWD vehicles, which enables the BMW to achieve its full potential. 

*The stock top speed governor is retained for automatic transmission vehicles.


When ordering please ensure you have your VIN ready for the checkout process. It is crucial that it is typed in accurately and completely at that time.

While we offer the DIY kits in the stage 1 form (or stage 2 in this case), the additional stages will need to be purchased and installed at an authorized dealer as they require hard parts to function properly. 

Benefits of the Stage 2 Dinan Performance Software Upgrade:

  • Max gain of 55 HP and 74 lb-ft of torque over stock
  • Better Drivability than "Piggyback" boxes
  • Hassle Free Operation
  • Huge Torque Gains Drastically Improves Acceleration
  • No Shipping!  Available at ALL +180 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 transmission 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
  • No Required Parts, install on a stock car and receive the full power gains


  • 2011-2013 BMW 135i Convertible
  • 2011-2013 BMW 135i Coupe
  • 2013 BMW 135is Convertible
  • 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
  • 2013-2015 BMW X1 xDrive35i
  • 2011-2013 BMW X5 xDrive35i
  • 2011-2014 BMW X6 xDrive35i
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 55
Max Torque Gain 74 @ 3900 RPM
Peak Horsepower 355 @ 5300 RPM
Peak Torque 401 @ 5300 RPM
Peak HP Gain 42 @ 5500 RPM
Peak Torque Gain 72 @ 3500 RPM
Factory Rated HP 300 @ 5800 RPM
Factory Rated Torque 300 @ 1300 RPM
Included Notes OBD2 to USB Adapter and USB Cable.
Required Items Windows 7 or newer Laptop with a USB connector and an internet connection.