BorgWarner Turbocharger 99-02 Audi TT S3 K04

The BorgWarner K04 turbocharger, part number 53049880020, features a robust cast iron turbine housing designed to withstand high exhaust gas temperatures. This unit is a direct replacement for the factory turbocharger found on 1999-2002 Audi TT and S3 models, offering an opportunity to restore lost performance or build a more powerful engine.

Engineered for reliability and improved airflow, this turbocharger utilizes a high-performance bearing system to ensure smooth operation and longevity under demanding conditions. The compressor wheel is precisely balanced to minimize vibration and maximize efficiency, contributing to quicker spool times and a broader powerband compared to worn-out or undersized units. This BorgWarner turbocharger is a well-built component that aims to bring your Audi's engine back to its intended performance level, or even surpass it with appropriate supporting modifications.

When replacing a turbocharger, it's crucial to ensure your engine oil is fresh and of the correct specification, as turbochargers rely heavily on clean, circulating oil for lubrication and cooling. Inspecting and cleaning the intercooler and intake piping for any obstructions or leaks is also recommended to ensure optimal performance from the new turbocharger. This unit is not CARB approved and cannot be shipped to California.