TRD Pro shocks, why did Toyota change them for 2019

Is there any way to adjust the 2019 TRD Pro Foxx shocks? From what it looks like, it’s all internally tuned specifically for the 2019 Tundra (right or wrong?).

 

I’ve read otherwise. Digressive on the Bilstein Pros. The new fox may different.

 

Will a newer (2020) set of TRD Pro shocks fit ok on a 2013 Tundra DC no problems and without any modifications?

 

There hasn’t been a change to suspension setup, to my knowledge, since Toyota introduced the 2nd gens. One way to look would be go to some of the sites for suspension/Offroad shops and see if the same PN/name is applied to what years or generations.

 

I know this is an old thread but have experience with both.
Bought my 2015 PRO new and ran the Bils for 95k miles.
Picked up a 2020 Fox PRO setup for 1100 bucks and sent to Fox for the refresh.
Both are great and perform similar enough, however.
I'd would prefer the Bils as they control body roll MUCH better due to being digressive shocks and it's very noticeable. The BILS with 95k controlled body roll better than the refreshed FOX setup. I used to say my PRO handled like a sport car (relative to other trucks) with the Bils, but that feeling is gone with the FOX PRO setup. The BILS are in fact stiffer at slow speeds.
On small washboard bumps the FOX seem to do a better job, but again the BILS returned to neutral faster. The Fox seem to have a bit of rebound before settling at neutral again, usually at slow/medium speeds on whoop- dee- do sorts of bump.
It is true...both the BILS and FOXs ride smoother the faster you go, but I've always felt the BILS reacted faster and settled quicker.
To each their own, but I'd prefer the BIL PRO setup vs the FOX PRO setup. I don't like how the FOX takes longer to settle with a little more rebound upwards before coming back to neutral.
Sucks that the BILS can't be rebuilt, as I'd pick that option all day long. Don't get me wrong, I like both setups, but prefer the BILS for reasons above. Body roll and quicker settling goes to the BILS.