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The BorgWarner EFR B2 70mm turbine housing with 1.05 A/R is a T4 twin-scroll housing intended to mate with EFR B2 turbine wheels. Its 70mm inlet and 1.05 A/R exhaust geometry provide greater flow area within a twin-scroll T4 arrangement, offering a turbine-side housing choice for builds that require that specific combination of inlet diameter and A/R.
BorgWarner Turbine Housing EFR B2 70mm 1.05 T4 Twin Scroll
