your best choice dude would be to go with the OS18CVRX it is a direct drop in and has more than enough torque and speed for your needs. For the power of the negine u will need a alloy diff also. Stick with the stock header and pipe cause it is one of the only 18 pipes out there. If u want them claw rims the XXXNT model for that rim will fit the evader. The mashers will increase the speed a bit and the engine has enough power to push them. Definately get a high speed, high torque MG servo for the steering, u will need it for the mashers. BTW the RC10GT is the better truck of the 2. It is stronger and alot more agile. I have an evader and love it but the RC10GT is the better truck.