Fits for original BorgWarner AirWerks S200G BorgWarner AirWerks S200G Turbine Housing - 12701009084 T4 Twin Scroll - 70mm turbine wheel Genuine BorgWarner AirWerks turbine housing You receive a single genuine turbine housing for a BorgWarner AirWerks turbocharger, this let you choose which A/R ratio orientation of the flange and flange type fits best to your application. Fits the subsequent turbochargers: S200G For turbine wheels: 69,56mm A/R ratio: 0.83ar Header flange: T4 divided / twinscroll Different A/R ratio? With this turbine housing you can fit your AirWerks turbocharger with a different A/R ratio. If you purchase an AirWerks turbocharger and wish to have a different A/R turbine housing, you have to order the corresponding turbine housing in addition. Notice: Mounting kit for turbine housing is sold separately!