Introducing the TTE400 Upgrade hybrid turbocharger (Electronic Actuator) for the four-cylinder petrol N20 engine from BMW.    

To construct a TTE400 N20 we change the original compressor and employ a far larger and more efficient billet 6+6 wheel and mill the compressor cover to the optimum gap to match the new compressor profile. Notice we CNC mill the cover to have a smooth transition to the intake inlet, no big step to hinder airflow as you see on the competition's offerings. 

We replace the original exhaust turbine and CNC mill the turbine housing to install a larger 9 blade turbine for greater gas flow and lower backpressure.  

Precisely balancing our turbochargers is a key critical factor to become a TTE upgrade unit as longevity and performance are paramount. Good balance improves acoustics also. Subsequent great care is taken with all TTE turbochargers to achieving our balance standards. Firstly parts are balanced at slow speeds up to 2800RPM in multiple planes using our single parts machine, then components are assembled and then the CHRA are dynamically balanced, but this time depending on application at up to 250,000 RPM in multiple planes using our in house VSR machine to acquire the ultimate equilibrium, to a standard far higher than OEM. Each turbocharger is supplied with a serial numbered balance test result document.

Equilibrium

Precisely balancing our turbochargers is a key critical factor to become a TTE upgrade unit as longevity and performance are paramount. Good balance improves acoustics also. Subsequent great care is taken with all TTE turbochargers to achieving our balance standards. Firstly parts are balanced at slow speeds up to 2800RPM in multiple planes using our single parts machine, then components are assembled, and then the CHRA are dynamically balanced, but this time depending on the application at up to 250,000 RPM in multiple planes using our in house VSR machine to acquire the ultimate equilibrium, to a standard far higher than OEM. Each turbocharger is supplied with a serial numbered balance test result document.

Upgrade your Existing Turbo

To upgrade your existing turbo, you will need to send us your non-damaged turbo. The listing price is the cost of upgrading a non-damaged turbo only. If your turbo is damaged, there may be extra cost on top of the listing price, we will provide you with a quote after inspection. All turbo will be closely inspected before the upgrade is carried out. You will also receive a report from our engineer after the upgrade is completed.

• Original Genuine turbocharger as the base part
• Highly Efficient 6+ 6 Next Gen Billet Compressor 
• High-Flow Compressor Inlet CNC machining 
• High-Flow 9 Blade Turbine
• 360 Thurst Bearing
• Genuine actuator
• Genuine diverter valve
• Dynamically Balanced & Supplied with test result documents
• Fitment As Original. Plug & Play
• 400PS Capable
• Single parts finely balanced then components assembled and core high-speed VSR balanced
• Supplied with a balance test result document
• Proven TheTurboEngineers Quality
• Made in Germany

Upgrade your Existing Turbo
To upgrade your existing turbo, you will need to send us your non-damaged turbo. The listing price is the cost of upgrading a non-damaged turbo only. If your turbo is damaged, there may be extra cost on top of the listing price, we will provide you with a quote after inspection. All turbo will be closely inspected before the upgrade is carried out. You will also receive a report from our engineer after the upgrade is completed.

Fits all F Chassis cars with the N20 engine

1 Series

F20 125i & F20 LCI 125i (2010 - 2018)

F21 125i & F21 LCI 125i (2010 - 2018)

2 Series

F22 220i (2012 - 2017)

F22 218i / 228ix (2012 - 2016)

F23 220i (2014 - 2017)

F23 228i / 228ix (2014 - 2016)

3 Series

F30/F31 320i / 320ix / 328i / 328ix (2011 - 2015)

F30 LCI 320i (2014 - 2018)

F30 LCI 328i (2014 - 2016)

F31 LCI 328ix (2014 - 2016)

F34 320i / 320ix / 328i / 328ix (2012 - 2016)

F35 320Li / 328Li  & F35 LCI 320Li / 328Li (2011 - 2018)

F35 328Lix & F35 LCI 328LiX (2013 - 2016)

4 Series

F32 420i / 420ix / 428i / 428ix (2012 - 2017)

F33 420i / 428ix (2013 - 2017)

F36 420i / 420ix / 428i / 428ix (2013 - 2017)

If you have 5 / 6 / 7 series, please contact us for your compatibility with your VIN.

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your license plate or the last 7 digits of your VIN. Simply enter your car details prior to checkout.

SW10075 (New)
SW10075.3 (Upgraded)

Upgraded by

TheTurboEngineers (TTE)

Warranty

One year TTE warranty.

TheTurboEngineers(TTE)

TheTurboEngineers GmbH based in German is a dynamic and highly innovative turbocharger engineering company, specialised in production of motorsport turbochargers to the highest quality and greatest efficiency with attention to detail. Every component is optimised on long term reliability.

TTE are focused on the construction of prototypes from a concept, through to completion with all work mostly being done in-house to TTE's extremely high standards in Germany. TTE is a fine example of German engineering at its best. 

Small details are important to TTE, as is the conversion of existing OE turbochargers to new upgrade specifications, be it new or from a supplied used turbocharger.
TheTurboEngineers GmbH consults and provides to race teams and many well known tuning houses, looking for the best engineered performance turbochargers available.