This was just recently sent to me by another ford forum member.
HPX have now got a bolt on true twin system for the ba xr8s.
This is their claim "This sports system will out perform any similar product below 5000RPM"
They have also kept the pipes 2 1/4 as they say the XR8s are very back pressure sensitive.
Has anyone tried this?
I don't like the fact how it is still within legal limits....to me that is just too soft. But I guess they have to do it if they are to mass produce it.
Here is the PDF.
I had to upload it onto my site as I dunno how to upload files here. Please let us know if you have one of these systems on your beast!