Just received my racechip. My only drive with it so far was in the rain so couldn't put down all the power. Buuut, the power increase on the butt dyno is there. It definitely pulls harder through first second and third gear. I have never had traction issues in 2nd even in the rain, maybe a little wheel hop, but it completely spun my tires through 5k rpm's and up in 2nd. My passenger also noticed the difference. I got the gts model. Would I say theres a whole 50 hp increase on mode 7? I'm not sure, but it for sure feels quicker and pulls harder.
Install was a little tricky considering its the first mod I've ever installed on my own but followed the instructions and finished in around 40 minutes.