Tired of overheating your 10R transmission on the track or street because your cooling system can't keep up due to the stock thermostat design? Our 10R thermal bypass valve is CNC machined to exact OEM specifications for proper sealing within the valvebody to prevent pressure loss and full open fluid flow at any temperature. Other competitor valves are too loose in the bore and do not allow full open flow to the cooler.
 
While you have the valvebody apart you can order additional valvebody mods here, and here