class9
New member
Hi everyone.. My impreza recently failed the NCT on emmisions. Now I haven't looked at since (a week ago) but I'm thinking that is either the cat or lamda sensor.. The car is a P1.. I have a few questions I have heard people talking about prodrive exhausts is there such a thing.. Where is the best place to get and cat or lamda sensor for my P1.and last is the ecu different in a P1..
Any help would be great and appreciated..
Any help would be great and appreciated..