hi all, bit of a newbie, my friend has just purchased a Mk2 Escort Rs with 45000 origanal miles on it in mint condition as you could probably apreciate he wants to show the car in concoures shows.... the car is compleetly satandared now question is....... is it best to replace the header tank, rocker cover and turbo cross over pipe with standard ford parts or get uprated ones... also any sugestions as to where to get these parts from??????

Cheers Guys
Ian