08 CTS 6.0L/6L80 conversion
put about 100 miles on my car today. No more oil pan leak so keeping my fingers crossed. My daughter wanted to do a burn out so I tried a power brake and nothing. Tried Competitive mode and nothing. Tried stabilitrack off and nothing. Tried sport mode (manual shift) and nothin. Just a little chirp then back down to an idle. Let off the brake tho and it's a whole different story. Are you guys able to power brake a burnout or is it the same for you....