Was researching stage 8 locking header bolts for the coyote engine and found out there is two different threads used on them. The early ones got a 10 mm by 1.25 fine thread and at some point Ford changed it to a 10 mm by 1.50 coarse thread. So if you plan on headers on your 'yote and want to use stage 8 locking bolts, check which bolt you have before you dive in with both feet.

Also, if anyone is close enough to Cleveland, stainless works does free installs of headers to all veterans and current military ,year round, not just on veterans day.

http://stainlessworks.net/free-install

They make long tubes for the 5.0, 6.2, 04-08 5.4, 09-10 5.4, 04-08 4.6 2v and down pipes for the ecoboost. They are about 20 miles South East of Cleveland in Chagrin Falls OH

9899 E Washington Street
Chagrin Falls, OH 44023
Toll-Free: 800.878.3635