70380 B&M ShiftPlus Shift Improver - GM 4L60E/4L80E
B&M ShiftPlus for 1993-1998 GM 4L60E/4L80E Transmissions;Recalibrates Transmission Hydraulic System; No Need to Remove Transmission Pan; Reduces Slippage and Heat; Installs In Minutes; Firmer Shifts;