I dont go around beating on the car too much on the streets, in autox Im not exactly wot in 3rd gear,lol. The car is stock,2016, except for a stage 1 tune and the ots cobb tunes. When Im doing a pull from 3rd gear, I am noticing right around peak boost in the rpms a THUD/Thumping.... best way to describe it as if the transmission just shifted, but obviously I havent. It may be the turbo building boost, idk. Im just reaching out here to see if anyone is famiilar with this. I dont think if can be motor mount related because I AM NOT shifting. It only seems to really do it in 3rd gear. Car and actual values on my AP look great. no other shifting concerns, no dtc's. driving normally doesnt do it.