Does anyone know if this is S1 mazdaspeed diffuser fitted to S2 or is Mazda selling them? If 1st, how hard would it be to fit it?

 

No, and it would not fit, the rear bumpers are completely different. But you could run a S1 rear bumper on an S2 with the correct brackets, taillights, etc.

 

The LEG Sport rear S2 bumper diffuser might be an option that kind of looks similar.

 

Someone has fitted the MS diffuser (replica) onto a Series 2 bumper.



Alternatively, the Leg Motor Sport diffuser Jeanator mentioned is the closest and better looking option.

Delete the middle vent to further make it look like the Mazdaspeed Diffuser.





lol toes