Um. Well not really hard . Just a pain in the butt really. Yeah it's a nice system. Just waiting on the tank to come back and I'll put all this on the car also fuel cooler with fan has to go in as well. Then one off the big days ive been waiting for, For some time, tune at 18 or 20 psi. That will be fun. Also tune the box. All the shift cuts. Etc etc. .