Girodisc BMW E9X 335i Front Rotors GT3 IS38 Turbo:

IS38 Turbo:

Utilize the whole powerband of your turbocharged VW or Audi engine without the DSG interfering and shifting early

laminar airflow to the turbos

Returned fuel from both the DI FPR and port injection FPR

Girodisc BMW E9X 335i Front Rotors GT3 IS38 Turbo:The Girodisc system is a direct replacement for the OE disc, no modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. The central hat section of our rotor is made from strictly U. S. sourced 6061 T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved vane design,