The Whipple is actually more expensive than the Ford Performance/Roush superchargers. I went with the Whipple because of the larger intercooler. People with the Roush unit have complained about heat soak and power dropping off with back to back pulls because of the higher supercharger outlet temps compared to Whipple, VMP and Edelbrock.. Roush has upgraded the low temp radiator to help this problem, but with the smaller intercooler on the supercharger unit, it still may have heat issues, with the warmer weather ahead, we'll find out if the larger LTR helps and how much. The intercooler on the Whipple is almost twice the size of the Ford/Roush intercooler. Another reason is that there is more H.P potential with the Whipple over the Ford/Roush unit.
The Whipple stage one has an option for a warranty, I got the stage 2 which does not. The Ford/Roush unit has a warranty only if installed by an ASE certified mechanic. I'm doing a self install which would not qualify for a warranty. I could get a friend that's ASE certified to sign the paperwork, but that's bad Karma to me.
The Ford/Roush unit requires grinding down and drilling/tapping a boss on the cam chain cover. The Whipple does not require any drilling, grinding, tapping of any engine component.
If you haven't read about it, the Coyote engine has an issue with the oil pump gears breaking and engine getting damaged because of loss of oil pressure due to the breakage of the gears. I'm changing the oil pump gears and the timing chain gear in conjunction with the supercharger installation. Some say that it's not needed, some say it's good insurance to do the gears. Changing the gears only takes about a half a day at a leisurely pace, I think it's good peace of mind to
You might want to check out the links below. First is to some complaints of the Roush/ Ford performance unit and the other two are regarding the oil pump gears.
https://www.mustang6g.com/forums/th...he-the-roush-kit.127474/page-241#post-2840745
View: https://www.youtube.com/watch?v=DGOefZv7pgs
View: https://www.youtube.com/watch?v=vkoKQT2197Q