Owen Developments VAG TFSI Upgrades (Audi S3 Mk. 2 TFSI, Golf Mk. 5/6 TFSI)

Owen Developments offer two stages of upgrades to VAG TFSI engines as fitted to the Audi S3 Mk.2 TFSI, VW Golf Mk. 5 TFSI and the VW Golf Mk. 6 TFSI. These upgrades are based on genuine Borg Warner K04 turbos as fitted to the Audi S3 Mk. 2.

For VW Golfs a fitting kit is required, which can be supplied by Owen Developments.

350-380bhp

  Cut back turbine blades to improve exhaust gas flow at high engine load

  Owen Developments designed and manufactured 360° thrust bearing kit for increased reliability and allowing for increased boost levels

  Turbine and Compressor wheels balanced to a higher tolerance than standard

  Centre Housing rotating Assembly (CHRA) rebuilt and balanced to a higher tolerance than standard

  Custom Motorsport actuator built to Owen’s specification

  Lightweight HTA™ Billet Aluminium Compressor Wheel with an advanced aerodynamic profile for unrivalled transient response and efficiency, anodized in red, blue, gun metal or silver (subject to availability)

  65mm Compressor Wheel Exducer

  Re-profiled compressor cover to capitalize on the fitment of the HTA™ wheel