Installed ZL1 pedals on my SS a few years ago and it has always driven me crazy that The dead pedal didn't match.
Finally found a solution, and bought one for my camaro and my g8 (which share the same style pedals)
Got them from ultimatepedals.com... They have a bunch of styles but I opted for horizontal slot, smooth frosted finish since these match the GM pedals the best.
The only down side is that the slots are open and not filled with rubber like the stock ones, so I used some leftover plastic I had from some universal mud guards and cut it to the shape of the pedals to put in between the metal and the dead pedal for a cleaner appearance... Otherwise you would see the stock footrest slots through the metal openings
