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 Item: Wide Open Throttle Shift Valve (70249)
 Price: $129.70
 Part #: 70249
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These upshift kits from B&M are designed to provide wide-open throttle 3 to 4 upshifts for TH-700R4 (4L60) transmissions. Most TH-700R4 transmissions will downshift from fourth to third gear at about 3/4 throttle. This allows the transmission to remain in fourth gear at full throttle.