I did it to my Z28 and was impressed with the difference it made. Has anyone done this upgrade yet? I haven't looked at the brake lines on my SS yet to see what their made of.

 

I have done this on past cars. With 4 wheel disc they really give you a much firmer pedal.

 

i have front ones, thanks to Todd, they came with my Wilwood setup. i'd like to take care of the rear. stock are rubber, like any other car. feels better than stock, of course that could just be the brakes . i'll let you know if i feel a difference after taking care of the rears.