Steam STX Turbo N55 front

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SteamSpeed STX 67 BMW N55 Turbocharger Upgrade

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Availability: In stock

Product Code: STX67-BMW-N55
Brand: SteamSpeed Turbochargers

 The Steam STX 67 for BMW N55 is a direct replacement stock-location turbo for BMW owers with BMW's new TwinPower (twin scroll) 3.0 l inline 6 direct injection motors (BMW engine code N55).  The N55 is motor is used extensively throughout the BMW lineup, but includes: M135i (E82/E88/F20),  335i (E90/E92/F30), etc.

The Steam STX 67 for BWM TwinPower N55 engines provides:

  • Turnkey stock location replacement of the OEM turbo.  This means your turbo will appear stock, and can utilize exhaust, intercoolers, and intakes designed for the stock turbo.

  • Made from all brand new components, so there are no core deposits, and you don't have to return your factory turbo.  The turbo is brand new instead of a rebuilt used OEM turbo.

  • The STX 67 compressor wheel is 5-axis CNC milled billet aluminum and flows ~25-30% more than the stock turbo.

  • +75-90 HP at the wheels over stock

Turbine wheel: 47mm / 53mm

Compressor wheel options: 45.8mm / 67mm

This upgrade is designed for stock fitment and replaces the center cartridge and compressor housing, so it will reuse the stock turbine housing, actuator, and blow off valve. Our CHRA and compressor housing fit directly into your stock turbine housing, intake, and intercooler..  

This is a direct replacement for the BMW stock B03 turbocharger with part number P/N 1853-970-0001. Using our billet wheel technology, this upgrade will increase horsepower output by 25-30%, or +75-90 HP at the wheels, with very little loss on spool, depending on supporting mods.

Turbine wheel: 47mm / 53mm
Compressor wheel options: 45.8mm / 67mm

Turbo supplied is designed for stock fitment. It does not come with turbine housing, actuator, or blow off valve. Bolt our CHRA and compressor housing directly into your stock equipment.

We balance our center sections using the best available Schenck turbocharger balancers available.  Our process eliminates early bearing failure and ensures smooth reliable power.

Product Fitment Applications:

  • 2012-2015 F20 M135i
  • 2010-2012 E82 135i
  • 2012+ E82/E88 135is Coupe/Convertible
  • 2012+ E82/E88 135is Coupe/Convertible
  • 2010-2013 E92 335i Coupé
  • 2010-2011 E90 335i Sedan
  • 2012+ F30 335i Sedan
  • 2009+ F07 535i Gran Touring
  • 2010+ F10 535i
  • 2011+ F12 640i Coupé
  • 2012+ F12 640i Gran Coupé
  • 2012+ F01 740i
  • 2013+ E84 X1 xDrive35i
  • 2010+ F25 X3 xDrive35i
  • 2010-2013 E70 X5 xDrive 35i
  • 2011+ E71 X6 xDrive 35i


Additional Information

Fitment BMW N55
Turbo Inlet Size Stock
Cooling System Water & Oil
Bearing Type Journal Bearing
Compressor Wheel 49.5mm/67mm Billet
Compressor Housing A/R .57
Turbine Blade Count 9
Turbine Wheel 47mm/53mm
Turbine Housing Nozzle Area No
Actuator Type Stock
Wastegate Springs N/A
Balance Level 100,000 on VSR
Max Flow Rating 43 lbs/min
WHP Rating 400+
Install Kit Included No
Ported No

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