I’m running between 570 and 580 whp at 450 ft/lb torque on a 2014 automatic when doing a 4th gear pull. Transmission engine is stock and I have a ton of accompanying mods. Have had no issues for about a year and a half and I daily drive the car at least 3 days a week…careful not to beat it up and only WOT in manual mode from a dig. I am supercharged which helps a lot va turbo as far as beating the transmission and my tuner is one of the best he created a nice linear building curve of torque and whp that gradually climbs through 7500 rpm. All knock sensors are left on so my timing could theoretically be much more aggressive. It can be done stock, good luck. Do not push the transmission much past 450 ft/lbs especially at a lower rpm or you will be buying a new tranny. Car is having new 3.9 gears new quaife diff and fly wheel installed next week so we will see how that works out 👍
