I was against the catch can craze but begrudgingly changed sides after tech @ Ford dealer told me he had torn down the previous gen EB motors w/ 80k on them & would be all coked up w/ carbon deposits. Now- admittedly he had not seen any new EB motors come in yet to get a look inside after some mileage since they added port injection, but he convinced me enough to get the fuel system cleaning service done @ 21k miles & I have a JLT catch can I’m about to install this weekend.
My dealer actually recommended adding one, but specifically said “do not get a double sided one or anything that’s going to require cutting/drilling/modifying existing factory parts or it could effect warranty” the JLT does not require any of that, true “bolt on”