The BorgWarner K04-023 upgrade turbo has been developed for the Audi S3 8L and Audi TT 8N with a 1.8T engine. This turbo is a direct 1:1 replacement for the original unit and features a larger CNC-machined impeller and reinforced internal components. Thanks to the improved airflow and durability, power outputs of up to approximately 330 hp can be achieved with the appropriate upgrades.
Advantages
• Direct plug-and-play replacement for the OEM turbo•
Larger CNC-machined impeller for increased airflow•
Reinforced axial bearing for higher loads•
Reinforced pressure diaphragm•
Fully balanced
turbo• Oil- and water-cooled system•
Suitable for high-performance tuning builds
Technical specifications
• turbo type: K04-023 upgrade
turbo• Impeller: 63 / 46.5 mm•
Cooling: oil and water•
Wastegate: internal•
Balancing: fully dynamically
balanced• Fitting: direct OEM replacement
Compatibility
• Audi S3 8L 1.8T
209 hp• Audi TT 8N 1.8T
225 hp• Seat Leon 1M Cupra R 1.8T 210–225 hp
Also suitable for small turbo conversions on engines up to 1.8L, such as:
• VW G40
projects• Fiat Punto turbo•
Fiat Uno turbo
Recommended upgrades for maximum performance
• ECU tuning (chip)
• 70 mm exhaust system•
200-cell
sports catalytic converter• 76 mm
Downpipe• Large Intercooler
Contents
• BorgWarner K04-023 turbocharger
Frequently Asked Questions
Is this turbo a direct replacement for the original turbo?
Yes, the turbo is designed as a 1:1 plug-and-play replacement.
What is the maximum power output with this turbo?
Up to approximately 330 hp with the correct modifications and tuning.
Do any parts need to be replaced during fitting?
It is recommended that the oil supply and return lines be replaced during installation.
