Agree with Lloyd...
while I EVERY turbo diesel I had was tuned to up to +100 hp level,
and just about every gas vehicle I've ever had (including my current Jeep) gets their little 25 to 30 hp gain.
the ecoboost has not been tuned yet...
yes - reports of upwards of 80+ hp are enticing, and granted ours is in a nice awd explorer sport...
but stock, it will rip the steering wheel out of an unsuspecting drivers hand on the 1-2 shift it is so strong!
Save your warranty for now and let the engine prove itself to you first... make sure no hiccups that might need the mfg's tlc...
(fyi, ours has been perfect!)
all mfg's are very, VERY good at identifying engines that have been 'played with' no matter WHAT the tuner vendors say or the Magnuson-Moss warranty act says...
All the dealer has to say is Nope - not covering it" - and you are out a vehicle while your one lawyer sues their 30 lawyers