Both braces are bright-nickel plated for corrosion and rust resistance.
T1 Transmission Braces for the GR6. The lower section is now utilizing some CNC pieces that have saved a significant amount of fabrication time by starting to use some different components in the upper piece that save fabrication time and have an even more precise fitment. These improvements make for a better looking and fitting piece, and most importantly a more affordable piece.
The previous generations were a zinc yellow color and have switched to a bright-nickel color on the new generation. There are no issues with the first generation ones so if you already have them there is nothing to worry about.