TTE650 Upgrade Turbochargers These units offer our only turbocharger step to increasing your 4.2 TT V8 performance, yet offer near no loss in response over stock. Very popular with owners wanting RS6 Plug & Play fitting units but with greater and wider performance, still keeping OEM drivability. Engineered & Enhanced TTE650 Turbochargers start life and evolve from Genuine RS6 K04 OE units, we then fit bigger and better billet compressors mated to clipped turbines. Engineered and enhanced using only BorgWarner components. Performance with Durability TTE650 compressor covers are CNC machined in house to a optimum clearance to allow fitment and maintain efficiency of a larger more advanced billet BorgWarner 2283 Extended tip compressor wheels. The 2283 compressor wheel design features promotes greater airflow, using a low inertia wheel that performs like a wheel of even greater size and mass. Extended tip technology enables the user to have faster spool-up at lower engine speeds while providing the boost with less heat for powerful top-end performance. Turbine and shaft remain stock K04 items apart from a special curved clip process we perform. A TTE curved grinding process to the turbine blade tips, curved to alleviate stress from process. Clipping reduces blade area thus increasing gas flow and so reduce back pressure and lowering exhaust gas temperatures, allowing safer higher boost level's. This process also gives a secondary advantage of removing some material, lightening the turbine thus reducing rotational mass improving moment of inertia. Special profile 360 deg high performance motorsport BorgWarner journal bearing are fitted, to remain durable at higher loads with no loss in transient response. Actuators used are uprated sprung OE units fitted with our reinforced clamps for trouble free operation. 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 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. Key Points: Genuine BorgWarner Housings & Components Genuine BorgWarner Latest Billet Compressor Geometry Genuine BorgWarner Special Curved Clipped Turbine Genuine BorgWarner Uprated & Reinforced Synchronized Actuators Genuine BorgWarner Reinforced Bearings Optimized Compressor Cover Machining Clearances Dynamically Balanced Plug & Play RS6 Fitment 650PS Capable Designed, Machined & Built by TTE in Germany We offer brand new, we also can offer to upgrade your used turbochargers Brand New Price 3024.37 Euro net To Recondition and upgrade a used set of K04 Price is 1553.78 Euro net (For customers in EU countries 19%+ VAT Must be added to prices above unless have a valid VAT ID) Shipping does vary but 45.00 euro is a good guide for Europe wide. Reconditioning price shown is based on overhauling and reconditioning, upgrading a undamaged used turbochargers within specification. Only once cleaned and dismantled, inspected then a firm price be made Optional Performance Extras CNC Ported exhaust entry (NEW) 500.00 Euro Lightened Turbine shafts 200.00 Euro Ported boost discharge outlet 150.00 Compressor cover painted in Hi-Temp black coating 75.00 Actuator painted in red Hi-Temp coating 75.00 ALL PRICES INC VAT AND FOR PAIR Picture are of RS6 C5 TTE650 Turbochargers with extra cost options: Black Hi-Temp coated compressor housing, Ported exhaust housings, Ported discharge outlets, Red actuators, Lightened turbines.