I don't know how much past spec Ford de Mexico torqued my bolts, but they were on tight! I ended up blowing a gift card to Home Depot on a corded Milwaukee 1/2" drive impact gun, and I have never had to use anything other than a breaker bar on whatever it has been at any particular time that I was working on..lol.
FYI and a small tip to anyone interested - I have the Cobb "upgraded" charge pipes, and on the hot side it's a tight fit to get the impact or even a breaker bar plus socket on to the front bolt without having a few different sized (3/8" plus 1/2") drive extensions. I snugged the impact (it's large) in just enough using the 1/2" drive extension to loosen the bolt, and I finished loosening it with a 3/8" drive extension plus ratcheting socket set. No biggie, just sharing in case any tinkering beginners are reading and decide that they want to install this. Nothing is ever too hard with the right tools.
FYI and a small tip to anyone interested - I have the Cobb "upgraded" charge pipes, and on the hot side it's a tight fit to get the impact or even a breaker bar plus socket on to the front bolt without having a few different sized (3/8" plus 1/2") drive extensions. I snugged the impact (it's large) in just enough using the 1/2" drive extension to loosen the bolt, and I finished loosening it with a 3/8" drive extension plus ratcheting socket set. No biggie, just sharing in case any tinkering beginners are reading and decide that they want to install this. Nothing is ever too hard with the right tools.