Do I need to install a reducer from 2 1/2" to 1 1/2" for this shower drain ? | Terry Love Plumbing Advice & Remodel DIY & Professional Forum

I have this shower base that I am about to install

https://www.us.kohler.com/us/ballas...d-drain/productDetail/shower-bases/429198.htm

At the bottom of that page it says it pairs well (well for them at that price) with their shower drain:...

Do I need to install a reducer from 2 1/2" to 1 1/2" for this shower drain ?