One of the most common issues of the gen 1 3.5 Ecoboost is the quick connect fittings leaking at the turbos. This kit includes everything you need to repair both sides when they start leaking. This kit fits 2011-2016 F150's and 2015-2017 Expeditions. 
 
One other main item we recommend to replace are the exhaust manifolds if they are the stock style still. The upgraded exhaust manifold kit is listed as an option when purchasing. 
 
All of these parts are Ford genuine. 
 
BL3Z-8K153-BB
BL3Z-6A968-JD X2
BL3Z-6A968-C X4
BL3Z-6A968-B X2
BL3Z-8K153-AB
BL3Z-8A520-A
BL3Z-8A520-B
CL3Z-9450-B
CL3Z-9450-A
W715673-S900 x6