The power is majorly different now. It pulls much much harder then it ever thought of before. I also had a shift kit,servos, beast sun shell... etc put in. I know I didnt add any horsepower but its amazing what can be accomplished though a trans. They took out the batt so now I just haft to wait for the computer to relearn everything... Is there such thing as a stupid computer. It wont even Idle at this point. I think its a retard. Last time it took like 4 days to relearn.