A TTE855 Is an original RS3 8V.2/TTRS 8S turbocharger for the DAZA & DNWA 2.5 TFSI EVO engine that we the THETURBOENGINEERS Rework to make a class-leading performance hybrid, yet still being plug & play fitting with an upgrade inlet.

The TTE855 Hybrid turbocharger was the evolution of our highly acclaimed TTE777. Using some key features like a bigger billet compressor and CNC porting and other gas flow improvements.

The compressor wheel is exchanged for a milled aluminum wheel with state-of-the-art geometry, 7+7 blade so producing extra power. Equally, we change the original exhaust turbine for a far larger but very lightweight 9 blade TTE designed turbine, for lower exhaust gas backpressure, giving greater performance. We also fitted a proven TTE motorsport upgrade bearing system for durability.

Boost response as always is focused on when we were designing this unit and it does not disappoint with test results showing 500Nm at only 2620 RPM and 900Nm at 3500RPM!

With the TTE855 stage we have CNC ported the exhaust manifold to match the OEM gasket at the head flange and smooth the transition in each exhaust runner to improve gas speed and flow, so improving efficiency to the much bigger 9 blade low mass turbine and so driving the larger compressor harder. We also made other power modifications with regards to the turbine side of the TTE855 unit to increase gas flow.

If ordering new, we use the latest generation of BorgWarner original turbochargers with the latest spec Audi thermal heat isolation shielding on the exhaust manifold & turbine housing to lower engine bay temperatures and ensure the best performance and safety.

Please note: If you send an older generation turbo, without the original AUDI thermal shielding for the "upgrade" process, we will rework your turbo and return without the shielding, unless you buy the extra thermal Isolation process. Depending on stock availability we may substitute TTE thermal shielding and give AUDI original thermal shielding instead.

The Forge Audi Turbo Inlet Pipe (8S TTRS & 8V RS3) is recommended for Right-Hand Drive Cars.  

WE HIGHLY RECOMMEND THE STOCK & RS SPORTS EXHAUST SYSTEM IS REPLACED FOR A MORE FREE-FLOWING SYSTEM IF WANTING OVER 600HP DUE TO BACKPRESSURE ISSUES AND WARRANTY COVER. MILLTEK V2 IS RECOMMENDED

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.

• TTE Billet Highly efficient compressor geometry 66MM Inlet approx
  
• TTE 9 Blade High-flow Low-mass turbine
  
• TTE Upgrade bearing pack
  
• Genuine BorgWarner Turbocharger as the base part
  
• Genuine Upgrade BorgWarner actuator
• Thermally shielded exhaust manifold and housing
  
• CNC Optimized Compressor Cover Machining Clearances
  
• CNC ported manifold
  
• Plug and Play Installation
  
• 800HP+ on 102Ron 900HP+ using E85 Fuel
  
• 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
  
• USES TTE777 TURBO ELBOW RING ADAPTERS

From time to time when buying new, we might supply the upgrade TTE thermal isolation free of charge if AUDI OEM heat shielded units are not available.

• Audi 8S TTRS 2.5 TFSI (2014+)
• Audi 8V.5 RS3 2.5 TFSI (2017+)

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.

TTE10463.1 (New)

TTE10400.2 (Refurbished + Heat Shielding)

TTE10400.3 (Refurbish No Heat Shielding)

Upgraded by

TheTurboEngineers (TTE)

Warranty

One year TTE warranty.

Delivery

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. 

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.