So my buddy has a 01 7.3 and we took the stack off and no you can really notice it the exhaust makes more less of a rattle noise but its the exhuast he read something and heard it was the ebpv is this true or does some think there is more to it then this ? The truck has a mbrp 4" down pipe and whole exhaust and a edge programmer and that's about it.

 

all the clamps are tight and nothing hitting anything with plenty of room for movement? If you can get your hand on the linkage and see if theres any play in it

 

Yeah everything is tight nothing rattles abd what linkage do you mean ?