I've always used Mother's polish on tons of things they even tell you not to use it for...and it works great...try that in a small spot and see if it works for you.
hmm i always thought there was no going back on those SD headers (ah... they looked soo shiney brand new)
XPZ, Alum heads,150#, I/C, GEN V mps 3.0, N* TB CAI K&N fully built trans, JE pistons, L32 rods, Comp lifters, PRJ Fuel rails, 65# Injectors, elec pump, MSD wires, MSD coils, Alum control arms, AGX, vogtland, GMPP sway bars, rear trailing arms