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Based on BorgWarner’s popular S300 turbo, the S300BV features its electronically controlled variable-turbine-geometry (VTG) exhaust housing and serves as the high-pressure unit in Scheid’s compound kit (meaning it takes care of bottom end response, whereas the low-pressure turbo takes over at higher engine speed). The S300BV’s turbine housing ranges from near closed (for takeoff and quick response) to 24.1 cm (under wide-open throttle). The titanium compressor wheel features BorgWarner’s extended-tip technology, and its inducer measures 62 mm. The S300BV alone is capable of flowing 72 pounds of air per minute (roughly 1,030 cfm).