Tonight under heavy acceleration i noticed that my 2014 Cruze RS LTZ was making a whining noise towards the 5-6rpm range when merging on the highway. Its never made this sound and it seemed kind of laggy going through the gears. I havent driven the car much in the last 3 weeks but tonight it just seems different than i remember. I have the base tune from WOT should i contact them about a data log or is there a bigger underline problem lile thw tranny going out? Since ive had the tune the car has shifted really firm and accelerates very fast as if there is no in between on the rpm range. Another thing i noticed about a month ago was it shifting up and down between 4th and 5th under medium acceleration like try to pass a car. Like i said ever since i've had the tune there doesnt teally seem like theres a between its all or nothing. The car also seems to surge up and down when set on cruise at 60-70mph. If i increase up a mole or two ro down a mile or two ot goes away. The car has 19,000 miles and the tune has been on the car for around 4k miles.