GT2 Mazda 13B Turbo
#33729 from Grand Touring Committee · Rule change · TB 23-02 (2023-02 Fastrack)
In GT2 Spec Lines, Engines - Mazda, 13B Street / Bridge Port, change Notes as follows:
"Part# EFR 76/70 BW7670 or Garrett G30-660 Turbocharger-46mm Turbo Inlet Restrictor (TIR), Street Port only @ 2280lbs."