no WH temp adjustment in any FR product that i know of.
some have installed a higher temp part, not sure what it is.
as said above, if you've got temp problems, you should check your bypass valves on the WH.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package