Yes, I installed a Whipple kit. Albeit, it was on my 2017 but the experience has soured it for me and I will NOT be trying one on my 2019.
The "canned" tunes from Whipple just weren't dialed in for me. The truck would buck, stutter, surge, you name it. I must have tried a dozen tunes from Whipple and none worked. Driveability was horrible. I spent several hours of my life removing the kit and several hundred dollars returning it for only a partial refund. Whipple made no apologies but I guess a partial refund is better than a $6500 chunk of metal sitting in my garage.
Good luck.