Originally Posted by spike_africa

Since they are opening the tranny up for the valve body they will be changing the fluid and if they are a competent shop they will change the filter as it comes off for the valve body to be removed anyway. So you dont need to get a flush as you will have new fluid. Honestly i cant stress enough how easy this mod is you should read up on how to do it and just save your money and do it yourself. You will save money and learn new things about how cars work. Its the best part of modding your car is doing it yourself.