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TTE Audi 4.0T FSI Turbocharger Upgrade TTE800 (RS6, RS7, S6, S7 & S8) - ML Performance UK

TTE Audi 4.0T FSI Turbocharger Upgrade TTE800 (RS6, RS7, S6, S7 & S8)

The Turbo Engineers(TTE)

  • £5,849.99
    exc. VAT £4,874.99


TTE800 is our first hybrid performance upgrade turbocharger step for the 4.0 TFSI. Even more power, with great response as a stock turbocharger but with durability for higher boost

Engineered & Enhanced

To construct a pair of TTE800's we change the original compressor and employ a far larger and more efficient billet wheel with extended tip technology and mill the compressor cover to optimum gap to match the new compressor profile.

We install a clipped turbine for greater gas flow. The clipping of the turbine is a special TTE grinding process to the turbine blade tips. Curved to alleviate stress from process. Clipping reduces blade area thus increasing gas flow and so reducing back pressure and lowering exhaust gas temperatures, allowing safer higher boost level. This process also gives a secondary advantage of removing some material, lightening the turbine thus reducing rotational mass improving moment of inertia.



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 serial numbered balance test result document.




  • Latest billet compressor geometry
  • Genuine IHI CNC modified housings
  • Genuine IHI turbine/shaft, Clipped & lightened
  • Optimized clearances
  • Single parts finely balanced then assembled and balanced
  • Core high-speed VSR balanced
  • Each turbo Supplied with test result document
  • We offer brand new or we also can offer to recondition and upgrade your used turbocharger
  • Designed, Machined & Built by TTE in Germany


Dyno of STOCK RS6 vs TTE800 RS6

TTE Audi 4.0T FSI Turbocharger Upgrade TTE800 (RS6, RS7, S6, S7 & S8) - ML Performance UK 

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.



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.



Compatibility Check

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 registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.



  • Audi S8 D4 (2012+)
  • Audi S7 C7 (2012+)
  • Audi S6 C7 (2012+)
  • Audi RS7 C7 (2012+)
  • Audi RS6 C7 (2012+)



To upgrade your existing turbo, the estimated delivery time is around 3-4 weeks after receiving your existing turbo. 

Our new turbos are made to order, the estimated delivery time is also 3-4 weeks after receiving your order. 



One year TTE warranty.


Upgraded by

TheTurboEngineers (TTE)


Part Number

TTE10044 (New)

SW10044.1 (Refurbished)

Next Day UK Delivery

Get FREE Guaranteed next day UK delivery for orders over £100 (exc. VAT) on all in stock items. Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!

Worldwide Shipping

We ship worldwide via DHL International, simply enter your full address at checkout to see the shipping option(s) and quote(s). Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!