I have owned a 2016 Titan XD 4x4 106,000 miles since November 2019. Unfortunately for me the engine has let go at 110,000 miles. This after the previous owner and myself servicing at stricty Nissan dealers. The Nissan service department and Nissan corporate have denied any assistance with said vehicle. After requesting review Nissan corp, they will not offer any assistance. Parts to rebulid are not available. The Nissan dealer estimated a repair bill of around $14,000. I have found and plan to replace engine with a low mileage engine from a 2019 Titan Xd 5.0 for around $7,000. Upon replacement I will delete and tune to avoid further disappointment from this powerplant. I request fellow owners guidance to tune and delete correctly. I would like to remove the pedal to response lag and still maintain best reliability. I understand that this is the right place to request fellow owner's support. Please offer any support and experience so that I can salvage my loss. I appreciate any responses from my fellow Titan 5.0 owners.