All at the same time, I installed the Torque Solutions Positive Shift kit, the COBB shift plate, the Billetworkz brass bushing, the Group N transmission mount, and the Perrin Super Shift Stop. All of this went with my OEM STi short throw shifter. It’s hard to tell exactly which part contributed what, but I will say that my STi short-throw shifter is even better than it was before. 5th gear was hard for me to get into with the Perrin Shift Stop package, but now it goes in like a breeze. I set the COBB plate on the shortest reduction, and even with the STi short-throw, I don't think it's too short, although I was worried it would be. Fantastic product. Highly recommend installing with a lift.