The Madaspeed3 uses brake parts for the new Volvo 40 series line ,seeing as how the 3 and 6 share the some of the same parts I dontsee why the 6 shouldnt have brake parts from Volvo as well . Besides Ford has its hands in both Mazda and Volvo
You could try and drill the center of the stud and use an easy out ,but I think the easest way would be to remove the manifold and replace the stud ,thereis enough of the stud showing to grab it wit a pair of vice grips ,besides I notice and area on the maniflod that appears to have a bad weld ...
I agree , it is to much .if you really want something like that use a couple of shades lighter than the car and just do the outline of the Mazdaspeed along both doors
Too keep things "legal" use the front pipe from a MSP ,that is what I did . I have never had a CEL . The fit was perfect ,the only thing you have to do is extend the wiring for the 2nd O2 sensor . The header I am using id a Genie which has a blue coating .