Not sure if I mentioned yet in this thread or not (I've mentioned it just about everywhere else) adding the diff mount inserts and subframe stiffening bushings makes a massive difference in how the car will motivate off the line. I dont have to get mine over 1300-1500rpm at all to make a nice smooth start where as before I used to have to leave off between 1500-2k rpm. With less flex in the driveline there's less torque lost so more of it can go to motivating the car. I can squish the factory trans mount in one hand.. and I work on computers all day. That should give you a rough Ideer of how soft and squishy the driveline bushes are.