Turbo Request for 13B Engine
#30656 from Luis Rivera Jr · Rule change · TB 21-10 (2021-10 Fastrack)
In GT2 Engines - Mazda Spec Lines, 13B, add to Notes as follows:
"Part# EFR 70/76 Turbocharger-42mm Turbo Inlet Restrictor (TIR), Street Port only @ 2280lbs."