so i just had a couple questions about what i should and shouldnt do. i just purchased a invida catless downpipe and a grimmspeed 3 port ebcs. now i know that i shouldnt run the ebcs or the downpipe with out a tune but my question is, is it ok to run a aftermarket ebcs on an otherwise stock car. the only engine mods that will be done is the downpipe at this point. i know that in the long run its my car and i can do what i want to i am just kinda new to this kind of new to these cars and upgrading everything so i wanted to get some honest opinions before i messed up my car a bit. thank you in advance.oh btw its a stock 12 wrx with cobb stage 1 as of right now. as soon as i get the time i will be installing the downpipe and reflashing to a tp stage 2 map. again thanks.