I have the gen 2 stage 3 whipple set up on my 2014. It seemed pretty mellow and had a weird surging issue so I drove down to whipple and gave them my truck explained these issues and a few others. Tuner did his thing and sent me home. Truck def had more power (advanced timing) but shifting was nasty it stayed in first gear for ever and I swear it felt like 30seconds (IN my limited knowledge this is what will blow oil gears. I know you sheep have your ideas) the truck would also clunk about 4-5mph if going slow. I actually made the truck stop shifting had to turn off in the middle of traffic. After that I never drove the truck hard again and called whipple. The tuner said it is what it is nothing we can do. Lmao yea right I called JDM and talked to Jim Jr. He wanted me use the ford TB 78lb injectors and his tune. I had the TB already so bought the injectors and tune and waited. Just installed it all and the story’s you read are all legit the shifting is exactly what’s it’s supposed to be like and no more surging. My advice to anyone going whipple route don’t buy their TB and don’t even waste your time with their tune just call JDM I wouldn’t doubt a few HP is lost from the TB but drivability is way more important then 5hp for a daily driver truck. I typed all this out on my phone and I can’t spell so if there’s mistake my bad.