overiders are mk3, its the overiders and bars that are mk1.I personally for the mk3 look I wouldnt use over riders as that was mk1 really, and I like the idea of the centre exit 1.75, I think somewhere you can buy the same exhaust as the old monte rally cars had being centre exit and a bit different and I think there would be too much poke as they are 10x5 but I like the plan
i think no arches looks best