Turbo Systems Stage 2 Ball Bearing Hybrid IS38 Turbocharger Upgrade (600+ HP)The Turbo Systems Stage 2 turbocharger starts life as a genuine IS38 turbocharger, which is then heavily upgraded for better performance response. Both the compressor and turbine housings are modified to accept larger wheels, while the internals are upgraded to a ball bearing system. Designed to work with the stock exhaust and other hardware, capable of 600+ horsepower. On the Golf R S3, we can tune this for over 500+ horsepower on stock engine, with