Dinan Stage 1 Performance Engine Software/Boost Upgrade for BMW E90 E92 E93 335i E82 135i (N54)

Dinan D900-30TB

All orders will include an AutoTalent window decal
The top speed governor is removed, which enables the BMW to achieve its full potential. The software also features remapped water pump speeds as boost increases, better controlling operating temperatures which have been notably excessive even at stock boost pressures.

Dinan's Stage 1 Performance Engine Software provides substantial power gains with a modest increase in boost. Dinan matches the new car warranty coverage for up to 4 years or 50,000 miles, including the possibility of consequential damages. No one offers better performance or backs it up with such comprehensive warranty coverage. Dinan's Stage 1 Performance Engine Software safely increases turbo-boost pressure, along with properly retuned fuel mixtures, ignition timing and full map rescaling. 

Benefits of the Stage 1 Dinan Performance Software Upgrade:

  • Max gain of 44 HP and 58 lb-ft of torque over stock
  • Top Speed Governor Removed
  • Factory Matching Warranty (4year/50,000 mi)
  • Full Map Rescaling
  • Properly Returned Fuel Mixtures
  • Remapped Water Pump Speeds to Control Engine Temperature

Dinan software is not available for purchase online as it must be downloaded by Dinan or an Authorized Dinan Dealer using specialized equipment.


  • 2008-2010 BMW 135i E82 Coupe 
  • 2008-2010 BMW 135i E88 Convertible 
  • 2007-2010 BMW 335i E93 Convertible 
  • 2007-2010 BMW 335i & xDrive E92 Coupe 
  • 2007-2010 BMW 335i & xDrive E90 Sedan 
Product Specifications:
Labor Hours/Installation Hours 1.00
Emission Status 50 State Emissions Legal.
California Air Resources Board Executive Order Number D-176-39.
Max HP Gain 44 @ 4000
Max Torque Gain 58 @ 4000
Peak Horsepower 361 @ 5700
Peak Torque 379 @ 4300
Peak HP Gain 33 @ 5700
Peak Torque Gain 54 @ 4300
Factory Rated HP 300 @ 5800
Factory Rated Torque 300 @ 1500
Required Items None.