Mine was not as smooth during warmup either, which is why I asked my son to ask about thr MT-82 additive. When I installed the MGW shifter, that issue disappeared. I WAS advised to let the trans
warm up before aggressive use.
2014 GT, Race Red, 6-speed, Track Pack, JLT oil separator, sound tube delete, Roush Stage 2 supercharger kit, 82mm pulley, VMP tune, MGW shifter, Koni STR.T shocks and struts, Steeda Sport springs, BMR LCAs, relo brackets, adjustable UCA and adjustable panhard, GT500 axle backs, 3D Carbon painted GT500 spoiler.