I have an 01 GTP and want to order a powerlog, but I don't know if i should get a crossover pipe too, is there any point to swap the stock crossover to a zzp one since I'm getting the plog from zzp. I can't find anybody else thats sells the plog, also should I get the ceramic coated or just stainless, I know the painted ones just flake off. I need answers so I can continue my quest for more hp!!