The TTE420 is an advanced K04 frame hybrid turbocharger for VAG models with the 2.0 TSI EA888.1 engineThis turbo starts as a brand new original BorgWarner K04-064, which by TheTurboEngineers is completely dismantled, redesigned and optimized to create a powerful, efficient and virtually OEM-matching upgrade to create.
The core of the TTE420 is a much larger 2871X TTE billet compressor wheel of the latest generation with very thin blades. This results in a extremely high airflow for its size and a very wide compressor mapThe compressor housing is CNC machined to precise tolerances for maximum efficiency. The original PCV port is closed off and replaced with a TTE smooth-flow billet cover plate, while the intake pipe CNC machined and hand finished is used for a smooth transition and optimal airflow.
On the exhaust side a much larger BorgWarner K16 turbine and shaft mounted, while the K04 core is retained. This K16 turbine is clipped and lightened, what the back pressure decreases, EGTs reduces and safely enables higher boost levels. Despite this larger turbine, the response almost identical to standard K04, of significant gains in power and torque.
The turbo is further equipped with a TTE CNC silencer delete, An billet boost adapter, and a CNC Billet TTE Recirculation Valve Adapter which makes it possible to original VAG recirculation valve to maintain for OEM fit and trouble-free operation. A TTE-developed 360° motorsport bearing system ensures durability under high loads without loss of transient response. The actuator used is a improved spring loaded OE unit and reinforced clamps.
Each TTE420 is multiply balanced, inclusive high-speed VSR balancing up to 250,000 rpm, and comes with a numbered balance test report. Software recalibration is required.
Advantages
• 420+ hp proven
• K04 frame hybrid with near OEM fit
• 2871X TTE billet compressor (next-gen geometry)
• BorgWarner K16 turbine, clipped and lightened
• Lower back pressure and lower EGTs
• TTE 360° motorsport bearing package
• CNC silencer delete and boost adapter
• Preservation of OEM recirculation valve
• Plug & play (with 90° silicone hose)
• High-speed VSR balanced
• Inclusive balance test report
• Made in Germany
Technical specifications
• Platform: VAG 2.0 TSI EA888.1
• Basic: BorgWarner K04-064
• Compressor: TTE 2871X billet, next-gen
• Turbine: BorgWarner K16, cut & lightened
• Storage: TTE strengthens 360° motorsport
• Actuator: Improved OE, spring loaded
• Exhaust: 50 mm silencer delete
• Installation: Plug & play (90° silicone boost hose required)
• Software: required
Compatibility
• Audi S3 8P
• Volkswagen Golf 5 GTI ED30
• Seat Leon Cupra
(2.0 TSI EA888.1)
Contents
• TTE420 turbocharger upgrade
• Numbered balance test report
Important notes
• For EA888.1 a 90° silicone hose are needed for the boost exhaust
• Option “I'm sending in my old turbo” requires a BorgWarner K04-064 in good condition
• End result depends on software, fuel and supporting hardware
Frequently Asked Questions
How does the spool compare to a standard K04?
Almost the same in response, but with significantly more power and torque.
Is this a plug & play upgrade?
Yes, using a 90° silicone hose for the boost exhaust.
Is ECU software required?
Yes, software recalibration is mandatory.
Delivery time
• New turbo: 3 - 6 workdays
• I am sending my old turbo: 20 - 40 working days
