If you don't already own the game, you can find various editions through retailers like Green Man Gaming or Electronic First :
Scroll down to the section and look for the free Ultra HD Pack. Borderlands 2: Remastered Download PC Game
The term "remastered" for Borderlands 2 typically refers to the Ultra HD Texture Pack released by Gearbox. Unlike the Borderlands: Game of the Year Enhanced (which was a full engine upgrade for the first game), the Borderlands 2 update focuses on high-fidelity visual assets. If you don't already own the game, you