The tried and true 2-relay transbrake for the Ford 6R80 transmission is now available for the 10R80 on Amazon! You can now launch your Mustang or F150 at the drag strip just like the pros without the need for an aftermarket valve body. Follow the enclosed installation instructions and you'll be popping wheelies in no time! ***Please note that if you install this transbrake, you will need to contact LUND RACING for the tune revision that is required***Please note that you will need to provide a fused power source and a momentary button. I don't include this with the transbrake because everyone's tastes are different, however, I will be offering a momentary button on a spiral cord in my store soon! It is recommended that you have an aftermarket torque converter to maximize the benefit of this transbrake. Additionally, a 2-step is very useful to help set the perfect launch rpm while at the track. This particular transbrake model is specifically for the following models: 2018-2020 Ford Mustang GT with 10R80, 2018-2020 Ford Mustang 3.7L with 10R80 2018-2020 Ford F150 5.0L with 10R80. Look for my other store items for other years and models that are available. These transbrakes are also serviceable, so if you ever have an issue with it functioning properly, you can simply swap out the 12V relays to a new set and be back in business!