I would wait and see if you need to upgrade.
But if you've got money to spend, there are better converters than WFCO.
Progressive Dynamics is the top dog.
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