Fits for original BorgWarner AirWerks S500SX S500SX-E Turbo BorgWarner AirWerks S500SX S500SX-E turbine housing - 179478 T6 twinscroll - 1.15 A/R - 110mm 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: S500SX (BorgWarner 179188, 179191) S500SX-E (BorgWarner 15009097001, 15009097002) For turbine wheels: 110mm (exakter Wert ist 109,73mm) A/R ratio: 1.15 Header flange: T6 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!