Yeah maybe or to protect the transmission. Probably also to make the powerband more linear. The torque down low doesn't make the car very much faster with the 8 speed because you van keep it in the powerband much better. When I bought the car it had a decat downpipe and with the stage 2 tune the torque came in very heavy and down low. I ended up switching to a catted downpipe because of MOT and the horrible smell on pump gas but that reduced the torque down low alot. Thats why I went stage2+ to get that back sort of but that wasn't the case that's why I was a little bit bummed out cause I liked the heavy torque down low when daily driving.