Hi all, just wondering what else would be useful to have done prior to a remap on a my04 Wrx. have just got prodrive sport cat, prodrive decat pipe and b/box. already run a green panel filter. is the up pipe worth getting or would it do until end of the year when i would think about turbo needs?

Lee

 

Its definatly worth getting the up-pipe cat removed before the remap

 

would i get a CEL light on with the sport cat fitted?