I had this on my 2013 but this car is cursed – so I am putting it back to stock. Best the car ran so far is 12.2 at just under 118 mph on a poor 60’; we then ran out of weather so couldn’t test out the new tune. I put about 10,000 miles on the set up.
The turbo waste gate has a 3lb spring in it right now, and I have a 5lb spring that can be installed. Includes fuel injectors (can’t recall the size at the moment, have to find the installation manual). You will need GT over axle pipes and mufflers (the 3.7 uses a 2.25” exhaust and this uses the GT 2.5”) to complete the installation. Precision 67mm turbo.